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.
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收藏
页码：143 / 146
页数：4
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