Characterization of plasma nitrocarburized layers produced on AISI 316L austenitic stainless steel

被引：0

作者：

Casteletti, Luiz Carlos ^{[1
]}

Pires Fernandes, Frederico Augusto ^{[1
]}

Lombardi-Neto, Amadeu

Picon, Carlos Alberto ^{[2
]}

Tremiliosi-Filho, Germano ^{[3
]}

机构：

[1] Univ Sao Paulo, EESC, Sao Carlos, SP, Brazil

[2] UNESP, FEIS, Ilha Solteira, SP, Brazil

[3] Univ Sao Paulo, IQSC, Sao Carlos, SP, Brazil

来源：

REM-REVISTA ESCOLA DE MINAS | 2010年 / 63卷 / 01期

关键词：

Plasma; nitrocarburizing; stainless steel; AISI; 316L; EXPANDED AUSTENITE;

D O I：

10.1590/S0370-44672010000100024

中图分类号：

学科分类号：

摘要：

Hardness and consequently wear resistance of austenitic stainless steel can be highly increased, without losing corrosion resistance, by plasma nitrocarburizing surface treatment. In this re-search, an AISI 316L stainless steel was plasma nitrocarburized at 450 degrees C, and the obtained layers were characterized by optical microscopy microhardness and micro-wear tests. It was verified that the layer is composed of chromium nitrides precipitates and beneath them, a nitrogen rich expanded austenite, with hardness around 850HV. The total average thickness of the layer was about 40 mu m and presented good uniformity The wear resistance of the layer was much higher than that oldie substrate.

引用

页码：143 / 146

页数：4

共 8 条

[1] Results from an interlaboratory exercise to validate the micro-scale abrasion test [J].