Wear resistance of high-speed steels and cutting performance of tool related to structural factors

被引:55
作者
Chaus, A. S. [1 ]
Hudakova, M. [1 ]
机构
[1] Slovak Tech Univ Bratislava, Fac Mat Sci & Technol, Trnava 91724, Slovakia
关键词
High-speed steel; Microstructure; Wear resistance; Cutting performance; CAST TUNGSTEN-MOLYBDENUM; MICROSTRUCTURE; CARBIDES;
D O I
10.1016/j.wear.2008.12.101
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The dry, abrasive wear and cutting resistance of a high-speed steel has been investigated for both the cast and wrought states. The presence of a network of eutectic carbides in the cast material is shown to enhance its wear resistance because the network prevents excessive plasticity at the contact surfaces. In contrast, the isolated carbides in the wrought form are less effective so that the wear surfaces show roughness caused by plasticity, leading to an enhanced wear rate. Similar conclusions are reached with respect to the cutting behaviour of tool inserts made from the cast and wrought steels. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1051 / 1055
页数:5
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