Please use this identifier to cite or link to this item:
Title: The Kinetic diagram of sigma phase and its precipitation hardening effect on 15Cr-2Ni duplex stainless steel
Authors: Wan, J 
Ruan, H 
Wang, J 
Shi, S 
Keywords: Duplex stainless steel
Mechanical strength
Precipitation hardening
TTT diagram
Issue Date: 2018
Publisher: Elsevier Ltd
Source: Materials science and engineering. A, Structural materials : properties, microstructure and processing, 2018, v. 711, p. 571-578 How to cite?
Journal: Materials science and engineering. A, Structural materials : properties, microstructure and processing 
Abstract: The kinetics of sigma phase precipitation at the temperature range of 750–950 °C in a rapidly solidified 15Cr-2Ni-2Al-11Mn resource-saving duplex stainless steel was investigated. After fitting the experimental results with the Avrami equation, the TTT diagram of sigma phase was established. It is found that the precipitation rate of sigma phase maximizes at about 850 °C and that the precipitation hardening effect sharply peaks at about 1.5 vol% sigma phase content, which is obtained by aging at 850 °C for 180 min. With the further increase of sigma phase content from 1.5 vol%, the strength reduces and the ductility increases again.
ISSN: 0921-5093
EISSN: 1873-4936
DOI: 10.1016/j.msea.2017.11.079
Appears in Collections:Journal/Magazine Article

View full-text via PolyU eLinks SFX Query
Show full item record

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.