Austenite layer and precipitation in high Co-Ni maraging steel

被引：37

作者：

Wang, Chenchong ^{[1
]}

Zhang, Chi ^{[1
]}

Yang, Zhigang ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Mat, Beijing 100084, Peoples R China

来源：

MICRON | 2014年 / 67卷

关键词：

Austenite layer; Precipitated carbides; High resolution transmission electron microscopy; ELECTRON-MICROSCOPY; TRANSFORMATION; MARTENSITE; BEHAVIOR;

D O I：

10.1016/j.micron.2014.07.008

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

In high Co-Ni maraging steel, austenite has a great effect on the fracture toughness of the steel and the precipitated carbides are the main strengthening phase. In this study, both austenite layers and precipitation were observed and their formation theory was analyzed by Thermo-Calc simulation and several reported results. TEM and HRTEM observation results showed that the thickness of the austenite layers was about 5-10 nm and the length of the needle-like precipitated carbides was less than 10 nm. The carbides maintained coherent or semi-coherent relation with the matrix. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：112 / 116

页数：5

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