2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 2: Dubois Intl. Symp. / Complex Metallic Systems
| Editors: | Kongoli F, Kobe S, Calin M, Dong C |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 130 pages |
| ISBN: | 978-1-987820-38-6 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
CD shopping page
Development of a Co-free superhigh strength maraging stainless steel
Cuimin Bao1; Qing Wang2; Chuang Dong2;1SHENYANG BLOWER WORKS GROUP COMPANY, Dalian, China; 2DALIAN UNIVERSITY OF TECHNOLOGY, Dalian, China;
Type of Paper: Regular
Id Paper: 199
Topic: 36
Abstract:
A cluster formula [Ni-Fe12](Cr2Ni) was used to formulate the compositions of maraging stainless steels and a new steel was developed on the basis of Co-free Custom 465, with much reduced Ti contents. These alloys were prepared by the copper mould suction casting method, then solid-solution treated at 1273 K for 1 h followed by water-quenching, and finally aged at 783 K for 3 h. The experimental results showed that the multi-element alloying results in Ni3M precipitation on the martensite, which enhances the strengths of alloys sharply after ageing treatment. Among them, the aged Fe74.91Ni8.82Cr11.62Mo1.34Ti0.67Nb0.32Al0.19V0.36Cu1.78 wt% has higher tensile strengths with YS=1456 MPa and UTS=1494 MPa. It also exhibits good corrosion-resistance in 3.5 wt% NaCl solution.