High-pressure torsion assisted segregation and precipitation in a Fe-18Cr-8Ni austenitic stainless steel

被引：14

作者：

Hoffman, Andrew ^{[1
]}

Wen, Haiming ^{[1
,2
]}

Islamgaliev, Rinat ^{[3
]}

Valiev, Ruslan ^{[3
]}

机构：

[1] Missouri Univ Sci & Technol, Dept Min & Nucl Engn, Rolla, MO 65409 USA

[2] Missouri Univ Sci & Technol, Dept Mat Sci & Engn, Rolla, MO 65409 USA

[3] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa 450008, Russia

来源：

MATERIALS LETTERS | 2019年 / 243卷

关键词：

Nanocrystalline materials; Segregation; Atom probe tomography; Severe plastic deformation; Diffusion; High pressure torsion; RADIATION-INDUCED SEGREGATION; DIFFUSION;

D O I：

10.1016/j.matlet.2019.02.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

During irradiation or high-temperature aging, stainless steel can develop precipitates, significantly affecting mechanical properties. In this study atom probe tomography (APT) was used to study grain boundary segregation and secondary phases in a purely austenitic SS304 (a Fe-18Cr-8Ni steel) processed by high-pressure torsion (HPT) at 300 degrees C. Ni, Mn, Si enriched phase was observed at grain boundaries, and Cu nanoprecipitates were observed along and near phase/grain boundaries. Precipitation is facilitated by deformation assisted segregation along grain boundaries with a mechanism similar to vacancy diffusion in irradiated steels. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：116 / 119

页数：4

共 50 条

[41] Precipitation Kinetics of Cr2N in High Nitrogen Austenitic Stainless Steel
Feng Shi
Li-jun Wang
Wen-fang Cui
Chun-ming Liu
Journal of Iron and Steel Research International, 2008, 15 : 72 - 77
[42] The Effect of High Pressure Torsion on Structural Refinement and Mechanical Properties of an Austenitic Stainless Steel
Krawczynska, Agnieszka Teresa
Lewandowska, Malgorzata
Pippan, Reinhard
Kurzydlowski, Krzysztof Jan
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2013, 13 (05) : 3246 - 3249
[43] Lattice Dynamics in Hydrogenated Austenitic Stainless Steels Fe-25Cr-20Ni and Fe-18Cr-10Ni.
Rajevac, Vedran
Hoelzel, Markus
Fuess, Hartmut
ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2004, 60 : S295 - S295
[44] Dynamic Recrystallization Behavior of a Fe-Cr-Ni Super-Austenitic Stainless Steel
Asli, A. Hoseini
Zarci-Hanzaki, A.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2009, 25 (05) : 603 - 606
[45] Processing an 18Cr-8Ni Austenitic Stainless Steel Without the Dilemma of the Strength and Ductility Trade-Off
He, Chengjie
Zhu, Xiaoxiong
Hu, Chengyang
Dong, Hangyu
Wan, Xiangliang
Liu, Enyong
Li, Guangqiang
Wu, Kaiming
JOM, 2024, 76 (02) : 829 - 842
[46] The effect of high-pressure torsion on microstructure and strength properties of high-nitrogen austenitic steel
Astafurova, E. G.
Tukeeva, M. S.
Moskvina, V. A.
Galchenko, N. K.
Bataev, I. A.
Bataev, V. A.
LETTERS ON MATERIALS-PIS MA O MATERIALAKH, 2014, 4 (04): : 269 - 272
[47] Dynamic Recrystallization Behavior of a Fe-Cr-Ni Super-Austenitic Stainless Steel
A.Hoseini Asli
A.Zarei-Hanzaki
JournalofMaterialsScience&Technology, 2009, 25 (05) : 603 - 606
[48] Dynamic recrystallization behavior of a Fe-Cr-Ni super-austenitic stainless steel
Hoseini Asli, A.
Zarei-Hanzaki, A.
Journal of Materials Science and Technology, 2009, 25 (05): : 603 - 606
[49] Microhardness Homogeneity and Microstructure of High-Nitrogen Austenitic Steel Processed by High-Pressure Torsion
Maier, Galina
Astafurova, Elena
Melnikov, Eugene
Moskvina, Valentina
Galchenko, Nina
Smirnov, Alexander
Bataev, Vladimir
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2017 (AMHS'17), 2017, 1909
[50] Processing an 18Cr-8Ni Austenitic Stainless Steel Without the Dilemma of the Strength and Ductility Trade-Off
Chengjie He
Xiaoxiong Zhu
Chengyang Hu
Hangyu Dong
Xiangliang Wan
Enyong Liu
Guangqiang Li
Kaiming Wu
JOM, 2024, 76 : 829 - 842

← 1 2 3 4 5 →