Influence of Thermal Homogenization Treatment on Structure and Impact Toughness of H13 ESR Steel

被引：41

作者：

Ma Dang-shen ^{[1
]}

Zhou Jian ^{[1
]}

Chen Zai-zhi ^{[1
]}

Zhang Zhong-kan ^{[1
]}

Chen Qi-an ^{[1
]}

Li De-hui ^{[2
]}

机构：

[1] Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China

[2] Jiangsu Tiangong Tool Co Ltd, Danyang 212312, Jiangsu, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2009年 / 16卷 / 05期

关键词：

H13; microstructure; homogenization; impact toughness; isotropy;

D O I：

10.1016/S1006-706X(10)60011-8

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The as-cast microstructure of H13 ESR ingot and the influence of high temperature diffusion treatment on the structure and impact toughness have been investigated. The results show that the dendrite arm spacing gradually becomes wide from the surface to the center of ingot, and the large primary carbide particles always exist in interdendritic segregation areas; by means of high temperature diffusion treatment of ingot prior to hot-forging, the banded segregation is nearly eliminated, the annealed structure is more uniform and the isotropic properties have been improved remarkably.

引用

页码：56 / 60

页数：5