中文

Journal of Shanghai University >

2018 , Vol. 24 >Issue 6: 955 - 960

DOI: https://doi.org/10.12066/j.issn.1007-2861.1879

Research Paper

Effect of N content on microstructure of Fe-21Cr-3Ni-1Mo-N duplex stainless steel

Expand
  • 1. School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
    2. China Nerin Engineering Co., Ltd., Nanchang 330031, China

Received date: 2017-02-12

  Online published: 2018-12-26

Fold

Abstract

The effects of nitrogen content on the microstructure of Fe-21Cr-3Ni-1Mo-N duplex stainless steel (DSS) are studied. Increase of nitrogen increases the austenite volume fraction, and the effect of N content on the phase ratio is significant. With thermodynamic analysis, it is found that increase of N content is conducive to precipitation and growth of austenite. By fitting the data, it is found that the phase ratio of Fe-21Cr-3Ni-1Mo-N duplex stainless steel is 1:1 when the content of N is 1.545${\%}$.

Key words： duplex stainless steel (DSS); nitrogen; phase ratio

Cite this article

WEI Zhiqiang, CHEN Xiangru, ZHONG Honggang, ZHAI Qijie . Effect of N content on microstructure of Fe-21Cr-3Ni-1Mo-N duplex stainless steel[J]. Journal of Shanghai University, 2018 , 24(6) : 955 -960 . DOI: 10.12066/j.issn.1007-2861.1879

References

[1] Iza-Mendia A, Pinol-Juez A, Urcola J J, et al. Microstructural and mechanical behavior of a duplex stainless steel under hot working conditions[J]. Metallurgical and Materials Transactions A, 1998,29(12):2975-2986.
[2] Boillot P, Peultier J. Use of stainless steels in the industry: recent and future developments[J]. Procedia Engineering, 2014,83:309-321.
[3] Charles J, Chemelle P, 胡锦程, 等. 双相不锈钢的发展现状及未来市场趋势[J]. 世界钢铁, 2011(6):1-22.
[4] 江来珠, 张伟, 王治宇. 经济型双相不锈钢的研发进展[J]. 钢铁研究学报, 2013(4):1-8.
[5] Herrera C, Ponge D, Raabe D. Design of a novel Mn-based 1 GPa duplex stainless TRIP steel with 60${\%}$ ductility by a reduction of austenite stability[J]. Acta Materialia, 2011,59(11):4653-4664.
[6] 刘振宇, 李成刚, 赵岩, 等. 节约型双相不锈钢组织性能控制与制造技术[J]. 鞍钢技术, 2016(2):1-8.
[7] 刘小文, 王君民, 郭敬杰, 等. 超级双相不锈钢焊条焊缝相比例的影响因素[J]. 材料开发与应用, 2011(6):8-11.
[8] 刘廷材. 相比例对25${\%}$Cr型双相不锈钢焊接热影响区的组织和性能的影响[J]. 钢铁研究学报, 1990(2):43-48.
[9] 胡景豫, 谢月. 化学成分对ASTM A890双相不锈钢组织的影响[J]. 兵器材料科学与工程, 2011(2):58-60.
[10] 张仲秋, 李新亚, 娄延春, 等. 含氮不锈钢研究的进展[J]. 铸造, 2002(11):661-665.
[11] 张守伟, 王丽萍, 姜文勇, 等. N对CD3MN铸造双相不锈钢组织及性能的影响[J]. 热加工工艺, 2014(6):56-58.
[12] 李树健, 宋志刚, 郑文杰, 等. N对双相不锈钢00Cr25Ni7Mo3N组织、力学性能和耐点蚀性能的影响研究[J]. 材料导报, 2011(S1):520-522.
[13] 周磊磊, 林大为, 周灿栋, 等. 不同冷却速度下双相不锈钢 $\delta $/$\gamma$ 相变过程的原位观察[J]. 上海金属, 2007(3):19-23.
[14] Choi J Y, Ji J H, Hwang S W, et al. Effects of nitrogen content on TRIP of Fe-20Cr-5Mn-$x$N duplex stainless steel[J]. Materials Science and Engineering: A, 2012,534:673-680.
[15] Schaeffl A L. Constitution diagram for stainless-steel weld metal[J]. Metal Progress, 1974,106(1):227.
[16] 石璐璐, 马正欢, 崔世云, 等. 新型节镍Cr22双相不锈钢中铜的作用[J]. 上海大学学报(自然科学版), 2011(6):768-773.
[17] Schino A D, Mecozzi M G, Barteri M, et al. Solidification mode and residual ferrite in low-Ni austenitic stainless steels[J]. Journal of Materials Science, 2000,35(2):375-380.
[18] Atamert S, King J E. Elemental partitioning and microstructural development in duplex stainless steel weld metal[J]. Acta Metallurgica et Materialia, 1991,39(3):273-285.
Options
Outlines

/

〈 〉