Plasma Nitriding of Low Alloy Sintered Steels

被引：0

作者：

Shiva Mansoorzadeh

Fakhreddin Ashrafizadeh

Tom Bell

机构：

[1] The University of Birmingham

[2] Metallurgy and Materials

[3] Department of Materials Engineering

[4] Iran

[5] UK

[6] School of Engineering

[7] Isfahan University of Technology Isfahan

来源：

材料热处理学报 | 2004年 / 05期

关键词：

sintered steel; manganese; plasma nitriding;

D O I：

10.13289/j.issn.1009-6264.2004.05.028

中图分类号：

TG156.82 [];

学科分类号：

080201 ; 080503 ;

摘要：

Fe-3Cr-0.5Mo-0.3C and Fe-3Cr-l.4Mn-0.5Mo-0.367C sintered alloys were plasma nitrided at different temperatures. Characterization was performed by microhardness measurement, optical microscopy, SEM and XRD. Both materials had similar nitriding case properties. 1.4% manganese did not change the as-sintered microstructure considerably. It was observed that monophase compound layer, formed with increasing temperature. Compound layer thickness increased with increasing temperature while nitriding depth increased up to a level and then decreased. Core softening was more pronounced at higher temperature owing to cementite coarsening.

引用

页码：325 / 329

页数：5