Sintering of AISI M2 High Speed Steel with the Addition of NbC

被引：4

作者：

Wentzcovitch, Alexandre

Ambrozio Filho, Francisco

Elias da Silva, Luis Carlos

Martins das Neves, Mauricio David

机构：

来源：

ADVANCED POWDER TECHNOLOGY VIII, PTS 1 AND 2 | 2012年 / 727-728卷

关键词：

powder metallurgy; high speed steel; NbC; sintering and microstructure;

D O I：

10.4028/www.scientific.net/MSF.727-728.90

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The influence of adding 6 wt% (NbC) niobium carbide on the sintering temperature and microstructure of high speed steel - AISI M-2 (0.87% C, 5.00% Mo, 6.00% W, 4,00% Cr, 2.00% V and Fe bal.) powder was studied. The starting material was obtained by vacuum melting followed by atomization in water. The samples were axially cold compacted in a cylindrical matrix and then vacuum sintered at 1250 and 1350 degrees C. Dilatometry and differential scanning calorimetry measurements indicated an increase in sintering temperature with addition of niobium to the AISI M-2 steel. Optical and scanning electron microscope observations revealed a microstructure with uniformly distributed niobium carbides.

引用

页码：90 / 95

页数：6

共 5 条

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[2]

Carvalho C.G., 1997, THESIS MAX PLANCK I

[3] Microstructural development of high speed steels metal matrix composites [J].