Arc plasma nitriding of low carbon steel

被引：20

作者：

Mishra, SC ^{[1
]}

Nayak, BB

Mohanty, BC

机构：

[1] Reg Engn Coll, Dept Met, Rourkela 769008, India

[2] Reg Res Lab, Special Mat Div, Bhubaneswar 751013, Orissa, India

来源：

SURFACE & COATINGS TECHNOLOGY | 2001年 / 145卷 / 1-3期

关键词：

arc plasma nitriding; iron nitriding; microhardness; XRD; SEM;

D O I：

10.1016/S0257-8972(01)01291-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Arc plasma nitriding of low carbon steel was carried out in the temperature range 1000-1100 degreesC under different gas (Ar, N-2, H-2) configurations for 15 min each. The plasma nitrided surfaces were characterized by XRD, SEM and microhardness measurement to identify various nitride phases thus grown, observe surface morphology of grains and determine improvement in hardness, respectively. The depth of the nitride layer growth was found to be in the order of 100-120 mum. Microhardness was observed to increase by three to four times that of the original samples taken. Fe2-3N(epsilon), Fe2N1-x, and Fe2N, etc., were the main phases that grew in the are plasma process. Experimental details and characterization of are plasma nitrided low carbon steel are described and discussed in this paper. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：24 / 30

页数：7

共 26 条

[1]

The low-pressure Rf plasma as a medium for nitriding iron and steel [J].