Formation of L12-ordered precipitation in an alumina-forming austenitic stainless steel via Cu addition and its contribution to creep/rupture resistance

被引：40

作者：

Zhao, Bingbing ^{[1
,2
]}

Fan, Jifu ^{[1
,2
]}

Liu, Yize ^{[1
,2
]}

Zhao, Lin ^{[1
,2
]}

Dong, Xianping ^{[1
,2
,3
]}

Sun, Feng ^{[1
,2
,3
]}

Zhang, Lanting ^{[1
,2
,3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Shanghai Key Lab High Temp Mat & Precis Forming, Shanghai 200240, Peoples R China

[3] Shanghai Jiao Tong Univ, Gas Turbine Res Inst, Shanghai 200240, Peoples R China

来源：

SCRIPTA MATERIALIA | 2015年 / 109卷

关键词：

Alumina-forming austenitic steel; Creep; L1(2)-ordered precipitate; Precipitation strengthening; HIGH-TEMPERATURE CREEP; MECHANICAL-PROPERTIES; TEMPORAL EVOLUTION; BEHAVIOR; TRANSITION; STRENGTH; ALLOYS; PHASE; NB; NI;

D O I：

10.1016/j.scriptamat.2015.07.019

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Addition of 2.8 wt.% Cu to an alumina-forming austenitic (AFA) stainless steel promotes formation of a L1(2)-ordered phase with the dominating elements Ni, Cu and Al, instead of B2-NiAl and Cu-rich phases as predicted by the phase equilibrium calculation. At 700 degrees C1150 MPa, the creep/rupture life of the AFA steel increases from 1537 h to 2047 h with the occurrence of the L1(2)-ordered phase. The nano-size L1(2)-ordered Ni-Cu-Al precipitates are uniformly distributed in the austenitic matrix with an average diameter of 35 +/- 7 nm even after 2047 h creep/rupture testing. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：64 / 67

页数：4

共 37 条

[1] Coherent precipitation of copper in Super304H austenite steel [J].

Bai, J. W. ;

Liu, P. P. ;

Zhu, Y. M. ;

Li, X. M. ;

Chi, C. Y. ;

Yu, H. Y. ;

Xie, X. S. ;

Zhan, Q. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 584 :57-62

[2] Aging effects on the mechanical properties of alumina-forming austenitic stainless steels [J].

Bei, H. ;

Yamamoto, Y. ;

Brady, M. P. ;

Santella, M. L. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (7-8) :2079-2086

[3]

Bozzolo G., 1995, J COMPUTER AIDED MAT, V2, P113

[4] Co-optimization of wrought alumina-forming austenitic stainless steel composition ranges for high-temperature creep and oxidation/corrosion resistance [J].

Brady, M. P. ;

Magee, J. ;

Yamamoto, Y. ;

Helmick, D. ;

Wang, L. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 590 :101-115

[5] The precipitation strengthening behavior of Cu-rich phase in Nb contained advanced Fe-Cr-Ni type austenitic heat resistant steel for USC power plant application [J].

Chi, Cheng-yu ;

Yu, Hong-yao ;

Dong, Jian-xin ;

Liu, Wen-qing ;

Cheng, Shi-chang ;

Liu, Zheng-dong ;

Xie, Xi-shan .

PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL, 2012, 22 (03) :175-185

[6] Microstructural and lattice parameter study of as-cast and rapidly solidified NiAl intermetallic alloys with Cu additions [J].

Colin, J. ;

Serna, S. ;

Carnpillo, B. ;

Flores, O. ;

Juarez-Islas, J. .

INTERMETALLICS, 2008, 16 (07) :847-853

[7] Structure and mechanical properties of NiAl and Ni3Al-based alloys [J].

Czeppe, T ;

Wierzbinski, S .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2000, 42 (08) :1499-1518

[8]

Dong X., 2013, AQUAC RES, P1

[9] Brittle-to-ductile transition in NiAl single crystal [J].

Ebrahimi, F ;

Shrivastava, S .

ACTA MATERIALIA, 1998, 46 (05) :1493-1502

[10] Effect of Ni and Mn on the formation of Cu precipitates in α-Fe [J].

Gorbatov, O. I. ;

Gornostyrev, Yu. N. ;

Korzhavyi, P. A. ;

Ruban, A. V. .

SCRIPTA MATERIALIA, 2015, 102 :11-14

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