Effect of Solid Solution Treatment on Microstructure of Fe��Ni Based High Strength Low Thermal Expansion Alloy

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Abstract The influence of solid solution treatments on the dissolution of carbides precipitates, the grain size, and the hardness of high strength low expansion alloy were investigated through XRD analysis, microstructure observations, and theoretical computation. It was seen that most primary Mo2C type carbide band dissolved in a temperature range of 1 100-1 150 ��. When the temperature was over 1 200 ��, the grain size increased remarkably, which led to the reduction of hardness.

Key words�� high strength low expansion alloy solid solution temperature microstructure carbide dissolution

Received: 01 January 1900

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	Articles by authors
	ZHANG Jian��fu
	TU Yi��fan
	XU Jin
	ZHANG Jian��sheng
	ZHANG Jing��lin

Cite this article:

ZHANG Jian��fu,TU Yi��fan,XU Jin��. Effect of Solid Solution Treatment on Microstructure of Fe��Ni Based High Strength Low Thermal Expansion Alloy[J]. Chinese Journal of Iron and Steel, 2008, 15(1): 75-0.

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http://gt.chinamet.cn/Jweb_gtyjxb_en/EN/ OR http://gt.chinamet.cn/Jweb_gtyjxb_en/EN/Y2008/V15/I1/75

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