effects of substrate preheating temperatures on the

3.5.Thermophysical properties of materials

3.5.Thermophysical properties of materials

Was this helpful?People also askHow does preheating affect the curvature of a substrate?How does preheating affect the curvature of a substrate?The top surfaces of the substrates were manually preheated via welding torch to a temperature of 275 °C then allowed to cool to a temperature of 200 °C in an attempt to achieve a uniform temperature.Klingbeil et al.found that substrate preheating reduced the amount of substrate warping from a normalized curvature of 0.376 to 0.319 [ 12 ].Effect of Substrate Thickness and Preheating on the

Was this helpful?People also askHow does preheating affect the curvature of a substrate?How does preheating affect the curvature of a substrate?The top surfaces of the substrates were manually preheated via welding torch to a temperature of 275 °C then allowed to cool to a temperature of 200 °C in an attempt to achieve a uniform temperature.Klingbeil et al.found that substrate preheating reduced the amount of substrate warping from a normalized curvature of 0.376 to 0.319 [ 12 ].Effect of Substrate Thickness and Preheating on the

results for this questionHow does temperature affect the distortion of substrates?How does temperature affect the distortion of substrates?The in situ measurements suggest that the stress relaxation of Ti–6Al–4V at elevated temperatures increases the distortion observed in thick substrates,but has minimal effect on distortion in thin substrates.Effect of Substrate Thickness and Preheating on the

·The results of the experiments and finite element simulations show that with the increase of preheating temperature,the content of martensite/bainite in the deposited layer decreases,and the ferrite content increases.The proper preheating temperature (150 °C) has good mechanical properties.

·The results of the experiments and finite element simulations show that with the increase of preheating temperature,the content of martensite/bainite in the deposited layer decreases,and the ferrite content increases.The proper preheating temperature (150 °C) has good mechanical properties.

Cited by 13Publish Year 2018Author Chenggang Ding,Xu Cui,Jianqiang Jiao,Ping ZhuEffects of Substrate Preheating Temperatures on the

As the preheating temperature of the substrate increases,the content of martensite and bainite decr eases,and that of ferrite increases.The near-base microstructure consists of granular bainite and fine-grained ferrite.With the increase of preheating temperature,the residence duration of the high-temperature zone in the thermal cycle increases,

As the preheating temperature of the substrate increases,the content of martensite and bainite decr eases,and that of ferrite increases.The near-base microstructure consists of granular bainite and fine-grained ferrite.With the increase of preheating temperature,the residence duration of the high-temperature zone in the thermal cycle increases,

Cited by 13Publish Year 2018Author Chenggang Ding,Xu Cui,Jianqiang Jiao,Ping ZhuEffects of Substrate Preheating Temperatures on the

·Effects of Substrate Preheating Temperatures on the Microstructure,Properties,and Residual Stress of 12CrNi2 Prepared by Laser Cladding Deposition Technique

·Effects of Substrate Preheating Temperatures on the Microstructure,Properties,and Residual Stress of 12CrNi2 Prepared by Laser Cladding Deposition Technique

Cited by 13Publish Year 2018Author Chenggang Ding,Xu Cui,Jianqiang Jiao,Ping ZhuEffects of Substrate Preheating Temperatures on the

·Firstly,as the preheating temperature of the substrate increased,the content of martensite and bainite in the surface layer of the deposited layer decreased,and the ferrite content increased.The granular bainite near the base layer decomposed into ferrite and carbide,and the content of bainite decreased,while the content of ferrite increased.

·Firstly,as the preheating temperature of the substrate increased,the content of martensite and bainite in the surface layer of the deposited layer decreased,and the ferrite content increased.The granular bainite near the base layer decomposed into ferrite and carbide,and the content of bainite decreased,while the content of ferrite increased.

Effect of preheating temperature of the substrate on

8 rows··The study found that uniform preheating of the substrate to a temperature of 400 °C led to a reduction in residual stress by 40%.Generally in DED repair,the repair part is either too large to be completely and uniformly preheated or the DED machine cannot support bulk heating within its processing chamber.

8 rows··The study found that uniform preheating of the substrate to a temperature of 400 °C led to a reduction in residual stress by 40%.Generally in DED repair,the repair part is either too large to be completely and uniformly preheated or the DED machine cannot support bulk heating within its processing chamber.

Effect of substrate preheating on the photovoltaic

May 15,2018·The Japan Society of Applied Physics.The Japan Society of Applied Physics (JSAP) serves as an academic interface between science and engineering and an interactive platform for a

May 15,2018·The Japan Society of Applied Physics.The Japan Society of Applied Physics (JSAP) serves as an academic interface between science and engineering and an interactive platform for a

Influence of Preheating Temperature on Mechanical

The best preheating temperature to test the residual stress for three types of powders are 600°C,400°C and 300°C.For all three types of powders under different preheating temperatures,cladding layer and substrate have compact and uniform structures.However,when substrate is overheated the cracking will occur in the substrate.

The best preheating temperature to test the residual stress for three types of powders are 600°C,400°C and 300°C.For all three types of powders under different preheating temperatures,cladding layer and substrate have compact and uniform structures.However,when substrate is overheated the cracking will occur in the substrate.

Influence of Preheating Temperature on the Quality of the

Three sets of samples were prepared under identical spraying and grit blasting condition; substrate preheating temperature was the only parameter which was varied,i.e.preheating to 150°C,250°C and 350°C.Higher preheating temperature led to a significant increase in the coating adhesion.

Three sets of samples were prepared under identical spraying and grit blasting condition; substrate preheating temperature was the only parameter which was varied,i.e.preheating to 150°C,250°C and 350°C.Higher preheating temperature led to a significant increase in the coating adhesion.

Effects of substrate preheating on the thin-wall part

Oct 30,2014·According to this model,the effects of substrate preheating temperature on the heat

Oct 30,2014·According to this model,the effects of substrate preheating temperature on the heat

Effect of Preheating on the Delamination and Crack

on the effects of preheating the substrate on the potential delamination and crack formation across the parts fabricated using the Laser Solid Freeform Fabrication (LSFF) process.For this purpose,the temperature distributions and stress fields induced during the multilayer LSFF process,and their

on the effects of preheating the substrate on the potential delamination and crack formation across the parts fabricated using the Laser Solid Freeform Fabrication (LSFF) process.For this purpose,the temperature distributions and stress fields induced during the multilayer LSFF process,and their

Effects of substrate preheating during direct energy

Oct 18,2017·Five preheating temperatures (100-500 °C; interval of 100 °C) were selected,and the changes in the temperature of the substrate during deposition were observed.As the preheating temperature of the substrate was increased,the temperature gradient between the melting layer and the substrate decreased; this prevented the formation of internal cracks,owing to thermal stress relief.

Oct 18,2017·Five preheating temperatures (100-500 °C; interval of 100 °C) were selected,and the changes in the temperature of the substrate during deposition were observed.As the preheating temperature of the substrate was increased,the temperature gradient between the melting layer and the substrate decreased; this prevented the formation of internal cracks,owing to thermal stress relief.

Effect of Substrate Preheating on Bonding Strength of Cold

In situ induction heating and substrate preheating temperature effects on the coating’s properties were evaluated micro-hardness,adhesion and tensile strength were assessed and compared to

In situ induction heating and substrate preheating temperature effects on the coating’s properties were evaluated micro-hardness,adhesion and tensile strength were assessed and compared to

What The Welding Inspector Should Know About Preheating

Preheat,as defined within the AWS Standard Welding Terms and Definition,is “the heat applied to the base metal or substrate to attain and maintain preheat temperature”.The preheat temperature is defined by the same document as “the temperature of the base metal in the volume surrounding the point of welding immediately before welding

Preheat,as defined within the AWS Standard Welding Terms and Definition,is “the heat applied to the base metal or substrate to attain and maintain preheat temperature”.The preheat temperature is defined by the same document as “the temperature of the base metal in the volume surrounding the point of welding immediately before welding

The effect of substrate temperature on the critical

Jul 07,2021·First,an increase in the substrate temperature results in a decrease in its modulus,and thus a reduction of the bulk velocity.Since c 0 goes as (B/ρ) 0.5 with ρ being the density and these parameters appear in ratio in Eq.,the effect of temperature change upon them is

Jul 07,2021·First,an increase in the substrate temperature results in a decrease in its modulus,and thus a reduction of the bulk velocity.Since c 0 goes as (B/ρ) 0.5 with ρ being the density and these parameters appear in ratio in Eq.,the effect of temperature change upon them is

Effects of substrate preheating on the thin-wall part

A technique of substrate preheating,in which the substrate is heated via a hot plate to a specified temperature before the deposited material and the substrate are irradiated with a laser beam

A technique of substrate preheating,in which the substrate is heated via a hot plate to a specified temperature before the deposited material and the substrate are irradiated with a laser beam

The Effects of Substrate Temperature on the Residual

The analysis results indicate that lower preheating temperature of substrate does good effect on the cohesion property of multilayer composites and the probability of curling up after de-bonding

The analysis results indicate that lower preheating temperature of substrate does good effect on the cohesion property of multilayer composites and the probability of curling up after de-bonding

The Role of Substrate Preheating on the Adhesion Strength

Jan 18,2021·Substrate preheating improved the splat adhesion strength by 30% and the bonded area sixfold.In addition,due to an increase in the splat adhesion energy,the failure mode changed from brittle to a more ductile type of failure when the initial substrate surface

Jan 18,2021·Substrate preheating improved the splat adhesion strength by 30% and the bonded area sixfold.In addition,due to an increase in the splat adhesion energy,the failure mode changed from brittle to a more ductile type of failure when the initial substrate surface

(PDF) Effect of substrate temperature on interfacial

The results indicate that heat conduction from the high-temperature substrate plays an important role in heating the interfacial region.The increased interfacial temperature significantly enhances

The results indicate that heat conduction from the high-temperature substrate plays an important role in heating the interfacial region.The increased interfacial temperature significantly enhances

Effect of Preheat Temperatures on Mechanical Properties

effect of preheat temperatures on contraction stress pro- duced in resin composites during polymerization.The second objective is to evaluate the effect preheat tem- perature has on the mechanical properties of resin com- posites (nano-hardness,elastic modulus,and creep).It was hypothesized that increasing the preheat temperature

effect of preheat temperatures on contraction stress pro- duced in resin composites during polymerization.The second objective is to evaluate the effect preheat tem- perature has on the mechanical properties of resin com- posites (nano-hardness,elastic modulus,and creep).It was hypothesized that increasing the preheat temperature

Study of Substrate Preheating on Flattening Behavior of

As the substrate preheating temperature increased,the flatter surface morphology was seen at the interface between substrate and coating layer because of better wetting and corresponding higher

As the substrate preheating temperature increased,the flatter surface morphology was seen at the interface between substrate and coating layer because of better wetting and corresponding higher

(PDF) Effect of substrate temperature on the splat

Effect of substrate temperature on the splat formation of flame sprayed polypropylene.Surface and Coatings Technology,2011.Christopher Berndt.Download PDF.Download Full PDF Package.This paper.A short summary of this paper.37 Full PDFs related to this paper.READ PAPER.

Effect of substrate temperature on the splat formation of flame sprayed polypropylene.Surface and Coatings Technology,2011.Christopher Berndt.Download PDF.Download Full PDF Package.This paper.A short summary of this paper.37 Full PDFs related to this paper.READ PAPER.

Effect of substrate roughness on splat formation of

substrate at different preheating temperatures,showing the effect of substrate temperature on the splat adhesion to the substrate; (a,b,c,and d) are the splat edge in contact with the rough substrates at different preheating temperatures (i.e.,room temperature,70 ºC,120 ºC and 170 ºC,respectively).

substrate at different preheating temperatures,showing the effect of substrate temperature on the splat adhesion to the substrate; (a,b,c,and d) are the splat edge in contact with the rough substrates at different preheating temperatures (i.e.,room temperature,70 ºC,120 ºC and 170 ºC,respectively).

Impact of Directed Energy Deposition Parameters on

substrate preheating on distortion.Most notably,the effect of initial substrate temperature on distortion depended on the size of the substrate.On thin substrates,preheating reduced the total amount of distortion.However on thick substrates,preheating increased the amount of distortion.

substrate preheating on distortion.Most notably,the effect of initial substrate temperature on distortion depended on the size of the substrate.On thin substrates,preheating reduced the total amount of distortion.However on thick substrates,preheating increased the amount of distortion.

Effects of preheating and carbon dilution on material

Effects of preheating and carbon dilution on material characteristics of laser-cladded hypereutectoid rail steels was successfully inhibited by increasing the length of the preheated region using a preheating temperature of 350 °C.Dilution of carbon from the hypereutectoid substrate was observed and its effect on the microstructures of

Effects of preheating and carbon dilution on material characteristics of laser-cladded hypereutectoid rail steels  was successfully inhibited by increasing the length of the preheated region using a preheating temperature of 350 °C.Dilution of carbon from the hypereutectoid substrate was observed and its effect on the microstructures of

Effect of Perovskite Film Preparation on Performance of

Jun 20,2016·The effect of the preheating substrate temperature on the morphology and crystallinity of the PbI 2 films and the perovskite layers were measured by SEM (Figure 2).As the preheating substrate temperature increased,there is a severe change in the appearance of the films.

Jun 20,2016·The effect of the preheating substrate temperature on the morphology and crystallinity of the PbI 2 films and the perovskite layers were measured by SEM (Figure 2).As the preheating substrate temperature increased,there is a severe change in the appearance of the films.

NUMERICAL THERMAL ANALYSIS IN ELECTRON BEAM

be considered as the critical substrate thickness beyond which the preheating temperature penetration will not be affected.In addition,the preheating temperature penetrations are constantly to all conditions,regardless of the substrate thickness,roughly 0.5 mm which is equivalent to 5 powder layers.

be considered as the critical substrate thickness beyond which the preheating temperature penetration will not be affected.In addition,the preheating temperature penetrations are constantly to all conditions,regardless of the substrate thickness,roughly 0.5 mm which is equivalent to 5 powder layers.

Comparisons between thermal modeling and experiments

Feb 01,2004·A three‐dimensional thermal finite element model including the effect of the powder‐to‐solid transition has been developed to investigate the transient temperature distribution and effects of substrate preheating during laser densification of dental powder bed for the layer‐by‐layer fabrication.The model encompasses the effects of the temperature‐ and porosity‐dependent thermal

Feb 01,2004·A three‐dimensional thermal finite element model including the effect of the powder‐to‐solid transition has been developed to investigate the transient temperature distribution and effects of substrate preheating during laser densification of dental powder bed for the layer‐by‐layer fabrication.The model encompasses the effects of the temperature‐ and porosity‐dependent thermal

Comparisons between thermal modeling and experiments

Feb 01,2004·A three‐dimensional thermal finite element model including the effect of the powder‐to‐solid transition has been developed to investigate the transient temperature distribution and effects of substrate preheating during laser densification of dental powder bed for the layer‐by‐layer fabrication.The model encompasses the effects of the temperature‐ and porosity‐dependent thermal

Feb 01,2004·A three‐dimensional thermal finite element model including the effect of the powder‐to‐solid transition has been developed to investigate the transient temperature distribution and effects of substrate preheating during laser densification of dental powder bed for the layer‐by‐layer fabrication.The model encompasses the effects of the temperature‐ and porosity‐dependent thermal

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