Effects of cerium addition on solidification structure and mechanical properties of 434 ferritic stainless steel

被引：65

作者：

Zhang Shaohua ^{[1
]}

Yu Yanchong ^{[2
]}

Wang Shebin ^{[2
]}

Li Hao ^{[1
]}

机构：

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

[2] Taiyuan Univ Technol, Key Lab Interface Sci & Engn Adv Mat, Minist Educ, Taiyuan 030024, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2017年 / 35卷 / 05期

关键词：

434 ferritic stainless steel; Ce; solidification structure; mechanical property; rare earths; TEXTURE DEVELOPMENT; HOT DUCTILITY; MICROSTRUCTURE; BRITTLENESS; PRESSURE; ALLOY;

D O I：

10.1016/S1002-0721(17)60942-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Effects of Ce refiners on the solidification structure and the mechanical property of ferritic stainless steel were investigated, the corresponding mechanisms were also discussed. The results showed that the solidification of the ferritic stainless steel was remarkably refined with 0.011 wt.% Ce and 0.023 wt.% Ce refiners. Ce played a great role of inclusion modification and the shape and size of the inclusions were changed by adding Ce. And after adding rare earth Ce, great amounts of high-melting point rare earth Ce inclusions (Ce2O3 and Ce2O2S) were formed. The fracture mode of 434 ferritic stainless steel was typical cleavage fracture, however, the ductility and the toughness of ferritic stainless steel was remarkably enhanced with 0.011 wt.% Ce and 0.023 wt.% Ce refiner. But the solidification structure and the mechanical property of 434 ferritic stainless steel could not be improved with 0.034 wt.% Ce refiner.

引用

页码：518 / 524

页数：7

共 24 条

[11] History of power plants and progress in heat resistant steels [J].

Masuyama, F .

ISIJ INTERNATIONAL, 2001, 41 (06) :612-625

[12] The effect of heat treatment on recrystallized microstructure, precipitation and ductility of hot-rolled Fe-Cr-Al-REM ferritic stainless steel sheets [J].

Qu, H. P. ;

Lang, Y. P. ;

Yao, C. F. ;

Chen, H. T. ;

Yang, C. Q. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 562 :9-16

[13] Effect of rare earth elements on microstructure and oxidation behaviour in TIG weldments of AISI 316L stainless steel [J].

Samanta, S. K. ;

Mitra, S. K. ;

Pal, T. K. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 430 (1-2) :242-247

[14] Effect of rare earth cerium on brittleness of simulated welding heat-affected zones in a reactor pressure vessel steel [J].

Song Shenhua ;

Sun Huajun ;

Wang Meng .

JOURNAL OF RARE EARTHS, 2015, 33 (11) :1204-1211

[15] INTERMEDIATE-TEMPERATURE BRITTLENESS OF A FERRITIC 17CR STAINLESS-STEEL [J].

SUN, DS ;

YAMANE, T ;

HIRAO, K .

JOURNAL OF MATERIALS SCIENCE, 1991, 26 (03) :689-694

[16] Effect of cerium sulphide particle dispersions on acicular ferrite microstructure development in steels [J].

Thewlis, G .

MATERIALS SCIENCE AND TECHNOLOGY, 2006, 22 (02) :153-166

[17] NUCLEATION CATALYSIS [J].

TURNBULL, D ;

VONNEGUT, B .

INDUSTRIAL AND ENGINEERING CHEMISTRY, 1952, 44 (06) :1292-1298

[18] Inclusions and solidification structures of high pure ferritic stainless steels dual stabilized by niobium and titanium [J].

Wang, Hong-Po ;

Sun, Li-Feng ;

Shi, Jun-Jie ;

Liu, Cheng-Jun ;

Jiang, Mao-Fa ;

Zhang, Chi .

RARE METALS, 2014, 33 (06) :761-766

[19]

Wang LQ, 2004, J RARE EARTH, V22, P255

[20]

Wang W, 2008, ACTA METALL SIN, V44, P723

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