[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.12656/jksht.2010.23.5.263

Low Temperature Tensile Properties of High Temperature Gas-nitrided Duplex Stainless Steel

On, Han-Yong (Department of Materials science and Engineering, Dong-A University)
Kong, Jung-Hyun (Center for Advanced Net Shape Manufacturing and Clean Process, Dong-A University)
Kim, Mi-Jeong (Department of Materials science and Engineering, Dong-A University)
Park, Sang-Joon (Department of Materials science and Engineering, Dong-A University)
Kang, Chang-Yong (Division of Materials science and Engineering, Pukyoung National University)
Sung, Jang-Hyun (Center for Advanced Net Shape Manufacturing and Clean Process, Dong-A University)

Publication Information

Journal of the Korean Society for Heat Treatment / v.23, no.5, 2010 , pp. 263-268 More about this Journal

Abstract

This investigation was focused on the low temperature tensile properties, phase change, changes in nitrogen content and corrosion resistance in the 22Cr-5Ni-3Mo duplex stainless steel after high temperature gas nitriding and solution annealing (HTGN-SA). From the HTGN-SA treatment, the duplex (ferrite + austenite) phase changed into austenite single phase. The nitrogen content of austenite single-phase steel showed a value of ~0.54%. For the HTGN-SA treated austenitic steel, tensile strength increased with lowering test temperature, on the other hand elongation showed the maximum value of 28.2% at $-100^{\circ}C$ . The strain-induced martensitic transformation gave rise to lead the maximum elongation. After HTGN-SA treatment, corrosion resistance of the austenite single-phase steel increased remarkably compared with HTGN- treated steel.

Keywords

HTGN treatment; duplex stainless steel; low temperature tensile test; strain-induced martensite;

Citations & Related Records

Times Cited By KSCI : 1 (Citation Analysis)

Reference
Cited By KSCI

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