Austenite grain distribution law in 34CrNi3MoV steel

doi:10.13251/j.issn.0254-6051.2023.07.001

Abstract

Abstract: Effects of different holding temperature and holding time on austenite grain growth of 34CrNi3MoV steel were studied. The effects of holding temperature and holding time on average grain size, major axis and minor axis were analyzed by means of metallography. The results show that in the Gaussian distribution equation, the standard deviation and expectation increase with the increase of holding temperature and holding time. The size of the major axis and minor axis of grains is closely related to the average size, and the ratio has a simple linear relationship. During the grain growth, the ratio of the major axis to the minor axis basically remains unchanged. The distribution probability expressions of average grain size, major axis size and minor axis size are obtained by regression. At the same time,a new way of thinking and possible explanation for the heredity in materials science in terms of mathematical laws is provided.

Key words: 34CrNi3MoV steel, austenite grain size, holding temperature, Gaussian distribution, heredity

CLC Number:

TG142.7

Zheng Bing, Xu Dong, Wang Yiqun, Wang Xuexi, Zhao Hongyang, Ju Dongying. Austenite grain distribution law in 34CrNi3MoV steel[J]. Heat Treatment of Metals, 2023, 48(7): 1-7.

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