The growth behavior of austenite grain in the heating process of 300M steel

被引：163
|
作者：
Zhang, S. S. [1 ]
Li, M. Q. [1 ]
Liu, Y. G. [1 ]
Luo, J. [1 ]
Liu, T. Q. [2 ]
机构：
[1] NW Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China
[2] AVIC, Beijing Inst Aeronaut Mat, Beijing 10095, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 15期
关键词：
300M steel; Heating temperature; Holding time; Austenite grain growth; LOW-ALLOY STEEL; MECHANICAL-PROPERTIES; MICROSTRUCTURE;
D O I：
10.1016/j.msea.2011.02.089
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The 300M steel was heated in an electric furnace at the temperatures of 850, 900, 950, 1000, 1050 degrees C, and holding time of 5, 10, 30, 60, 90, 120min. The grain size of austenite was measured by using the linear intercept method on Olympus PMG3 metallographic microscope. The experimental results show that grain size of austenite increases with the increasing of heating temperature and holding time, and the grain growth model of austenite in 300M steel is in the following: d = 4.04 x 10(6)t(0.17)exp(-(1.32 x 10(5)/RT)). (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：4967 / 4972
页数：6
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