Grain boundary co-segregation of B and Ce hindering the precipitates of S31254 super austenitic stainless steel

被引：21

作者：

Gao, Jiemin ^{[1
]}

Ma, Jinyao ^{[2
]}

Yang, Song ^{[1
]}

Guo, Zhensen ^{[1
]}

Ma, Jie ^{[1
]}

Li, Huabing ^{[3
]}

Jiang, Zhouhua ^{[3
]}

Han, Peide ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China

[2] Taiyuan Univ Technol, Instrumental Anal Ctr, Taiyuan 030024, Peoples R China

[3] Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2023年 / 24卷

基金：

中国国家自然科学基金;

关键词：

Super austenitic stainless steel; Boron; Cerium; Grain boundary segregation; engineering; Mechanical properties; Heat treatment; MECHANICAL-PROPERTIES; PHASE-TRANSFORMATION; MICROSTRUCTURE EVOLUTION; BORON SEGREGATION; ATOMIC-SCALE; BEHAVIOR; CORROSION; POLYCRYSTALLINE; STRENGTH; ALLOY;

D O I：

10.1016/j.jmrt.2023.03.135

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of boron (B) and cerium (Ce) grain boundary (GB) co-segregation on the precipitates formation of S31254 during 950-1050 & DEG;C was studied through a new heat treatment process. The results show that B and Ce segregate at GBs by air cooling and diffusion at 300 & DEG;C. The segregation of B and Ce at GBs inhibits formation of s phases. B can dissolve in precipitates, which leads to the serrated GBs. Ce can't dissolve in precipitates, which makes the distribution of the precipitates more discontinuous. There is still nanoscale precipitates with the addition of B and Ce after aging for 180 min at 1050 & DEG;C. B and Ce at GBs promote mechanical properties of S31254. & COPY; 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

引用

页码：2653 / 2667

页数：15

共 48 条

[31] Grain Boundary Segregation Behavior of Boron in Low-Alloy Steel [J].

Shigesato, Genichi ;

Fujishiro, Taishi ;

Hara, Takuya .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2014, 45A (04) :1876-1882

[32] Boron segregation to austenite grain boundary in low alloy steel measured by aberration corrected STEM-EELS [J].

Shigesato, Genichi ;

Fujishiro, Taishi ;

Hara, Takuya .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 556 :358-365

[33]

SIMCOE CR, 1955, T AM I MIN MET ENG, V203, P193

[34] Atomic-scale study on segregation behavior at austenite grain boundaries in boron- and molybdenum-added steels [J].

Takahashi, J. ;

Ishikawa, K. ;

Kawakami, K. ;

Fujioka, M. ;

Kubota, N. .

ACTA MATERIALIA, 2017, 133 :41-54

[35] Influence of microstructure on local intra- and intergranular deformations during creep of a nickel-based superalloy at 700°C [J].

Thibault, Kevin ;

Locq, Didier ;

Caron, Pierre ;

Boivin, Denis ;

Renollet, Yves ;

Brechet, Yves .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 588 :14-21

[36] Solute segregation on Σ3 and random grain boundaries in type 316L stainless steel [J].

Tomozawa, Masanari ;

Miyahara, Yuichi ;

Kako, Kenji .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 578 :167-173

[37] Effect of B addition on the microstructure and corrosion resistance of S31254 super austenitic stainless steels after solid solution treatment [J].

Wang, Jian ;

Cui, Yishi ;

Bai, Jingang ;

Dong, Nan ;

Liu, Ying ;

Zhang, Caili ;

Han, Peide .

MATERIALS LETTERS, 2019, 252 :60-63

[38] The influence of Ce micro-alloying on the precipitation of intermetallic sigma phase during solidification of super-austenitic stainless steels [J].

Wang, Qi ;

Wang, Lijun ;

Sun, Yanhui ;

Zhao, Aimin ;

Zhang, Wei ;

Li, Jianmin ;

Dong, Hongbiao ;

Chou, Kuochih .

JOURNAL OF ALLOYS AND COMPOUNDS, 2020, 815

[39] Influence of grain-boundary morphology on creep of a wrought Ni-base superalloy [J].

Wisniewski, A. ;

Beddoes, J. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 510-11 :266-272

[40]

Yang Song, 2023, METALS-BASEL, V13, P1

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