IMR OpenIR
ALLOYING ELEMENT SEGREGATION EFFECT IN A MULTI-PHASE STRENGTHENED MARAGING STAINLESS STEEL
Tian Jialong1,2; Li Yongcan3; Wang Wei1; Yan Wei1; Shan Yiyin1; Jiang Zhouhua2; Yang Ke1
Corresponding AuthorWang Wei(wangw@imr.ac.cn)
2016-12-12
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume52Issue:12Pages:1517-1526
AbstractMaraging stainless steels are the most widely used high strength stainless steels because of their excellent combination of high strength, superior corrosion resistance and good weldability. The typical heat treatment of maraging stainless steel consists of solution treatment and the following aging treatment. Aging treatment is the important process since it affects the steel's final properties and then determines its application prospect. Thus, understanding well the segregation behavior of alloying elements during the aging treatment plays a key role in developing the new maraging stainless steel with superior properties. In this work, segregation of alloying elements as well as its effect on mechanical properties and corrosion resistance of a multi-phase strengthened maraging stainless steel was studied by HRTEM and APT analyses. It was found that three precipitating species including Mo-rich R' phase, eta phase and Cr-rich alpha' phase were identified in the steel. A unique core-shell structure with membrane-like R' phase formed on the surface of eta phase was identified however alpha' phase distributed in the matrix separately. The core-shell structure enabled the maraging stainless steel a superior over-aging resistance and since aging time has reached 40 h, the characteristics of precipitations change little even aging time prolongs to 100 h. The corrosion test results indicated that the occurrence of alpha' phase resulted in the formation of Cr-depleted zone and deteriorated the corrosion resistance seriously. In conclusion, the segregation behavior of alloying elements in maraging stainless steel has a significant effect on both mechanical property and corrosion resistance although some underlying mechanisms still haven't been understood well.
Keywordmaraging stainless steel alloying element segregation mechanical property corrosion resistance
Funding OrganizationNational Natural Science Foundation of China ; Science and Technology Innovation Foundation from Institute of Metal Research, Chinese Academy of Sciences
DOI10.11900/0412.1961.2016.00234
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51201160] ; Science and Technology Innovation Foundation from Institute of Metal Research, Chinese Academy of Sciences[2015-ZD04]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000391244600005
PublisherSCIENCE PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/123576
Collection中国科学院金属研究所
Corresponding AuthorWang Wei
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Northeastern Univ, Sch Met & Mat, Shenyang 110819, Peoples R China
3.Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Tian Jialong,Li Yongcan,Wang Wei,et al. ALLOYING ELEMENT SEGREGATION EFFECT IN A MULTI-PHASE STRENGTHENED MARAGING STAINLESS STEEL[J]. ACTA METALLURGICA SINICA,2016,52(12):1517-1526.
APA Tian Jialong.,Li Yongcan.,Wang Wei.,Yan Wei.,Shan Yiyin.,...&Yang Ke.(2016).ALLOYING ELEMENT SEGREGATION EFFECT IN A MULTI-PHASE STRENGTHENED MARAGING STAINLESS STEEL.ACTA METALLURGICA SINICA,52(12),1517-1526.
MLA Tian Jialong,et al."ALLOYING ELEMENT SEGREGATION EFFECT IN A MULTI-PHASE STRENGTHENED MARAGING STAINLESS STEEL".ACTA METALLURGICA SINICA 52.12(2016):1517-1526.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Tian Jialong]'s Articles
[Li Yongcan]'s Articles
[Wang Wei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tian Jialong]'s Articles
[Li Yongcan]'s Articles
[Wang Wei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tian Jialong]'s Articles
[Li Yongcan]'s Articles
[Wang Wei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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