Mechanomaking of high speed steel AISI M2 powders fabrication

被引:5
|
作者
Matteazzi, P [1 ]
Wolf, F [1 ]
机构
[1] Univ Udine, Dipartimento Sci & Tecnol Chim, I-33100 Udine, Italy
关键词
nanophase materials; high speed steels; powder metallurgy; Mossbauer spectroscopy;
D O I
10.1016/S0921-5093(97)00748-X
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
High speed steel AISI M2 was obtained by high energy milling from the elemental powders. The kinetics of synthesis were followed by Mossbauer spectroscopy and X-ray diffraction. About 14 h are required to complete alloying (12 at.% solute content) of the matrix and formation of carbides (M6C and Fe3C) all having grain sizes below 20 nm. The mean particle size was 50 mu m and the individual particles were almost fully dense. Limited grain growth to < 100 nm at temperatures up to 1300 degrees C was observed. This new concept for the fabrication of alloys and materials is suggested to be termed mechanomaking. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:235 / 243
页数:9
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