Hot workability of spray-formed AISI M3:2 high-speed steel

被引：35
|
作者：
Rodenburg, C [1 ]
Krzyzanowski, M [1 ]
Beynon, JH [1 ]
Rainforth, WM [1 ]
机构：
[1] Univ Sheffield, Dept Mat Engn, IMMPETUS, Sheffield S1 3JD, S Yorkshire, England
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 386卷 / 1-2期
基金：
英国工程与自然科学研究理事会;
关键词：
high-speed steel; hot compression; activation energy; carbide network; fracture stress;
D O I：
10.1016/j.msea.2004.07.056
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Axisymmetric hotcompression tests (900-1100degreesC) on spray-formed AISI M3:2 high-speed steel were performed in order to establish suitable parameters for hot forging of this material. Special attention was paid to establish the deformation conditions that lead to the breakdown of the carbide network, present after spray forming, and to avoid fracture of the material as a result of deformation. By a combination of microstructural analysis and finite element modelling, values for fracture stresses in this temperature range and critical strains for the breakdown of the carbide network are given. The activation energy for hot deformation was also determined. (C) 2004 Elsevier B.V All rights reserved.
引用
收藏
页码：420 / 427
页数：8
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