MICROSTRUCTURAL ANALYSIS OF A NEW CAST HIGH-SPEED NIOBIUM-ALLOYED TOOL STEEL

被引：5
|
作者：
Yilmaz, A. [1 ]
机构：
[1] Off Tech & Project Adm, Turkish Land Forces Command, Ankara, Turkey
来源：
METAL SCIENCE AND HEAT TREATMENT | 2012年 / 54卷 / 7-8期
关键词：
materials for cutting tools; casting; high-speed steels alloyed with niobium; SOLIDIFICATION;
D O I：
10.1007/s11041-012-9511-6
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 28 - 32, July, 2012. The microstructure of a cast high-speed steel alloyed with niobium and not subjected to hot deformation is studied. Heat treatment of the niobium-bearing steel yields fine edged monocarbides, which makes the steel very tough. The introduction of niobium prevents formation of eutectic interdendrite carbides that cause embrittlement of the cast steel.
引用
收藏
页码：349 / 354
页数：6
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