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
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.
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页码:349 / 354
页数:6
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