High-temperature High-speed Hot Deformation Behavior of Inconel Alloy 625

Chin J Mater Res

2010, Vol. 24

Issue (3): 239-244 DOI:

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High-temperature High-speed Hot Deformation Behavior of Inconel Alloy 625

YAN Shicai ^1,2, CHENG Ming², ZHANG Shihong^1,2, ZHANG Haiyan², ZHANG Weihong², ZHANG Liwen¹

1.Department of Material Science and Engineering, Dalian University of Technology, Dalian 116024
2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016

Cite this article:

YAN Shicai, CHENG Ming, ZHANG Shihong, ZHANG Haiyan, ZHANG Weihong, ZHANG Liwen. High-temperature High-speed Hot Deformation Behavior of Inconel Alloy 625. Chin J Mater Res, 2010, 24(3): 239-244.

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Abstract

The hot compression test results of Inconel625 alloy have been analyzed and the errors in flow stress caused by thermal effect were corrected. The true stress-strain curves were obtained at the temperature of 1000--1200℃ and the strain rates of 10--80 s-1. Constitutive equation of Inconel625 alloy at high temperature and high speed was established by curvilinear regression method. The microstructure after deformation showed that enhancing strain rate can refine< microstructure well, but there would be twinning remained when the strain rate was overly high. The microstructure would be most homogenous and finest under acceptable temperature (1050℃) and strain rate (50 s-1).

Key words: metallic materials, Inconel alloy 625, high-temperature high-speed, hot deformation, DRX

Received: 14 January 2010

ZTFLH:

TG146

Fund:

Supported by National Natural Science Foundation of China No.50834008.

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https://www.cjmr.org/EN/ OR https://www.cjmr.org/EN/Y2010/V24/I3/239

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