Simultaneous surface engineering and bulk hardening of precipitation hardening stainless steel

被引：49

作者：

Frandsen, RB ^{[1
]}

Christiansen, T ^{[1
]}

Somers, MAJ ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Mfg Engn & Management, DK-2800 Lyngby, Denmark

来源：

SURFACE & COATINGS TECHNOLOGY | 2006年 / 200卷 / 16-17期

关键词：

nitriding; carburising; precipitation hardening stainless steel;

D O I：

10.1016/j.surfcoat.2005.04.038

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This article addresses simultaneous bulk precipitation hardening and low temperature surface engineering of two commercial precipitation hardening stainless steels: Sandvik Nanoflex (R) and Uddeholm Corrax (R). Surface engineering comprised gaseous nitriding or gaseous carburising. Microstructural characterisation of the cases developed included X-ray diffraction analysis, reflected light microscopy and microhardness testing. It was found that the incorporation of nitrogen or carbon resulted in a hardened case consisting of a combination of (tetragonal) martensite and expanded (cubic) austenitc. The duration and temperature of the nitriding/carburising surface hardening treatment can be chosen in agreement with the thermal treatment for obtaining optimal bulk hardness in the precipitation hardening stainless steel. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：5160 / 5169

页数：10

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