V含量对不锈钢TDVS2001组织性能的影响

doi:10.13251/j.issn.0254-6051.2024.03.041

金属热处理 ›› 2024, Vol. 49 ›› Issue (3): 251-255.DOI: 10.13251/j.issn.0254-6051.2024.03.041

V含量对不锈钢TDVS2001组织性能的影响

裴明德, 李国平, 秦宇航, 张峰, 范新智, 郭宏钢

太原钢铁(集团)有限公司先进不锈钢材料国家重点实验室, 山西太原 030003

收稿日期:2023-09-08 修回日期:2024-01-08 出版日期:2024-03-25 发布日期:2024-04-24
作者简介:裴明德(1980—),男,高级工程师,博士,主要研究方向为不锈钢,E-mail:peimd@tisco.com.cn
基金资助:
山西省重点研发计划(2022ZDYF036)

Effect of vanadium content on microstructure and properties of stainless steel TDVS2001

Pei Mingde, Li Guoping, Qin Yuhang, Zhang Feng, Fan Xinzhi, Guo Honggang

State Key Laboratory of Advanced Stainless Steel Materials, Taiyuan Iron & Steel (Group) Co., Ltd., Taiyuan Shanxi 030003, China

Received:2023-09-08 Revised:2024-01-08 Online:2024-03-25 Published:2024-04-24

摘要/Abstract

摘要： 研究了V含量对双相不锈钢TDVS2001组织及性能的影响。利用金相显微镜、SEM、EDS和TEM对析出相及组织进行了表征。结果表明,当V含量在0.11%以下时,显微组织中无钒的析出物,力学性能略有提升,但变化不大;当V含量为0.27%时,铁素体相中析出大量纳米级的钒化物,材料屈服强度提高了68 MPa,冲击吸收能量无明显变化,透射电镜分析钒化物为VN。晶粒尺寸、纳米级VN析出相是其强度升高的主要原因。

关键词: TDVS2001不锈钢, 强度, VN析出相, 铁素体相, 冲击吸收能量

Abstract: Effect of vanadium content on the microstructure and properties of duplex stainless steel TDVS2001 was investigated. The precipitates and microstructure were characterized by metallographic microscope, SEM, EDS and TEM. The results indicate that when the vanadium content is less than 0.11%, there is no vanadium precipitate in the metallographic structure and the mechanical properties are slightly improved. When the vanadium content is 0.27%, a large number of nano-scaled vanadium precipitates occur in the ferrite phase, the yield strength of the material increases by 68 MPa, while the impact absorbed energy has no obvious change. The vanadate is confirmed to be VN precipitation by transmission electron microscope. The smaller grain size and nano-scaled VN precipitation are the main reasons for the improvement of strength.

Key words: TDVS2001 stainless steel, strength, VN precipitate, ferrite phase, impact absorbed energy

中图分类号:

TG172.8

裴明德, 李国平, 秦宇航, 张峰, 范新智, 郭宏钢. V含量对不锈钢TDVS2001组织性能的影响[J]. 金属热处理, 2024, 49(3): 251-255.

Pei Mingde, Li Guoping, Qin Yuhang, Zhang Feng, Fan Xinzhi, Guo Honggang. Effect of vanadium content on microstructure and properties of stainless steel TDVS2001[J]. Heat Treatment of Metals, 2024, 49(3): 251-255.

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V含量对不锈钢TDVS2001组织性能的影响

Effect of vanadium content on microstructure and properties of stainless steel TDVS2001

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