INFLUENCE OF THE STEP MARTEMPERING AND ANISOTROPY ON THE DISTORTION VALUE A COLD ROLLED HOT WORK TOOL STEEL

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FERESHTEKHESLAT J.; RAZAVI S.H.; NOURI A.

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Journal: METALLURGICAL ENGINEERING Year:2015 | Volume:17 | Issue:56 Page(s): 11-18

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Title

INFLUENCE OF THE STEP MARTEMPERING AND ANISOTROPY ON THE DISTORTION VALUE A COLD ROLLED HOT WORK TOOL STEEL

Author(s)

FERESHTEKHESLAT J. | RAZAVI S.H. | NOURI A. | Issue Writer Certificate

Keywords

HEAT TREATMENTQ2

MARTEMPERINGQ2

DISTORTIONQ3

STRUCTURAL ANISOTROPYQ2

FLATNESSQ2

Abstract

In this investigation, the role of the STRUCTURAL ANISOTROPY due to cold rolling on the DISTORTION value of hot work tool steel employing in moulding before and after the hardening HEAT TREATMENT was studied. For the hardening treatment, was used a step MARTEMPERING process. DISTORTION amount was calculated by FLATNESS factor in 3 states; after machining, after stress relief treatment and after MARTEMPERING. For purpose of the consideration of the anisotropy effect on the steel DISTORTION, dependent on the rolling direction, were prepared samples in 3 geometrical states.Before MARTEMPERING, the DISTORTION value of samples is very low and negligible. It is also independent on the sampling direction. Thus it is an isotropic characteristic. Results revealed that DISTORTION is induced in the martempered steel. It is also significantly different in various directions of sampling. It is implied that in the hardened steel, DISTORTION is an anisotropic property. The lowest DISTORTION is belonging to sample which is perpendicular to rolled direction.Hardeness measurement shows that this specification is an isotropic property both before and after hardening and is not affected by the geometrical direction of sampling.

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APA: Copy

FERESHTEKHESLAT, J., RAZAVI, S.H., & NOURI, A.. (2015). INFLUENCE OF THE STEP MARTEMPERING AND ANISOTROPY ON THE DISTORTION VALUE A COLD ROLLED HOT WORK TOOL STEEL. METALLURGICAL ENGINEERING, 17(56 ), 11-18. SID. https://sid.ir/paper/112416/en

Vancouver: Copy

FERESHTEKHESLAT J., RAZAVI S.H., NOURI A.. INFLUENCE OF THE STEP MARTEMPERING AND ANISOTROPY ON THE DISTORTION VALUE A COLD ROLLED HOT WORK TOOL STEEL. METALLURGICAL ENGINEERING[Internet]. 2015;17(56 ):11-18. Available from: https://sid.ir/paper/112416/en

IEEE: Copy

J. FERESHTEKHESLAT, S.H. RAZAVI, and A. NOURI, “INFLUENCE OF THE STEP MARTEMPERING AND ANISOTROPY ON THE DISTORTION VALUE A COLD ROLLED HOT WORK TOOL STEEL,” METALLURGICAL ENGINEERING, vol. 17, no. 56 , pp. 11–18, 2015, [Online]. Available: https://sid.ir/paper/112416/en

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