Effect of nitrogen on structure and properties of ultra-fine austenitic stainless steel

被引：4
作者：
Liu Jing [1 ]
Li Guang-qiang [1 ]
Peng Bing [1 ]
Mang Xin [1 ]
机构：
[1] Wuhan Univ Sci & Technol, Sch Met & Mat, Wuhan 430081, Peoples R China
来源：
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2007年 / 14卷
关键词：
high-nitrogen stainless steel; austenite; ultra-fine grain; solution strength;
D O I：
10.1016/S1006-706X(08)60101-6
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The structure and properties of ultra-fine austenitic stainless steel with different content of nitrogen made by mechanical alloy (MA) and the Spark Plasma Sintering (SPS) technology are studied in this paper. The XRD-pattern showed that sintered sample with nitrogen is single austenite, and sintered sample without nitrogen is composed of austenite and martensite. TEM showed grain size of sample all distributed in nanometer. The grain size of sample with nitrogen added in is smaller than sample without nitrogen added in. The result of mechanical property measurement showed that with the rise of nitrogen content, the hardness and abradability of sintered samples increased, and the tensile strength first increased then decreased. Measurement of polarization curve showed that corrosion resistance of sintered samples enhanced with rise of nitrogen.
引用
收藏
页码：310 / 315
页数：6
相关论文
共 8 条
  • [1] Nitrogen in iron and steel
    Gavriljuk, VG
    [J]. ISIJ INTERNATIONAL, 1996, 36 (07) : 738 - 745
  • [2] LANG YP, 2001, J IRON STEEL RES, V13
  • [3] PICKERING FB, 1989, SOME BENEFICIAL EFFE, V10
  • [4] CHARACTERIZATION OF STAINLESS-STEELS MELTED UNDER HIGH NITROGEN PRESSURE
    RAWERS, JC
    DUNNING, JS
    ASAI, G
    REED, RP
    [J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1992, 23 (07): : 2061 - 2068
  • [5] STEIN G, SMELT PROPERTY HIGH
  • [6] UGGOWITZER PJ, STRENGTHENING EFFECT
  • [7] XIA CL, 2003, U CHEM, V18
  • [8] ZHOU CD, 1999, J BAOTOU U IRON STEE, V9
1