Topologically close-packed phase promotion in a Ru-containing single crystal superalloy

被引：71
作者：
Chen, J. Y. [1 ]
Feng, Q. [1 ,2 ]
Sun, Z. Q. [1 ]
机构：
[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
[2] Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, Beijing 100083, Peoples R China
来源：
SCRIPTA MATERIALIA | 2010年 / 63卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Superalloys; Ruthenium; Chromium; Topologically close-packed (TCP) phase; NICKEL-BASE SUPERALLOYS; RHENIUM ADDITIONS; RUTHENIUM; SOLIDIFICATION; STABILITY; CREEP;
D O I：
10.1016/j.scriptamat.2010.06.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
It is widely accepted that Ru suppresses the formation of topologically close-packed (TCP) phases in advanced Ni-based single crystal superalloys. However, in the current study, the addition of a large amount of Ru promoted the precipitation of TCP phases in a Ni-based single crystal superalloy containing a high level of Cr during thermal exposure at both 1000 and 1100 degrees C. It is suggested that the addition of Ru increased the degree of Re and Cr supersaturation in the gamma phase and resulted in the TCP phase formation. Crown Copyright (C) 2010 Published by Elsevier Ltd. on behalf of Acta Materialia Inc. All rights reserved,
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页码：795 / 798
页数：4
相关论文
共 22 条
[1]   AN ATOM PROBE INVESTIGATION OF THE ROLE OF RHENIUM ADDITIONS IN IMPROVING CREEP RESISTANCE OF NI-BASE SUPERALLOYS [J].
BLAVETTE, D ;
CARON, P ;
KHAN, T .
SCRIPTA METALLURGICA, 1986, 20 (10) :1395-1400
[2]   Interfacial dislocation networks and creep in directional coarsened ru-containing nickel-base single-crystal superalloys [J].
Carroll, L. J. ;
Feng, Q. ;
Pollock, T. M. .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2008, 39A (06) :1290-1307
[3]   Elemental partitioning in Ru-containing nickel-base single crystal superalloys [J].
Carroll, L. J. ;
Feng, Q. ;
Mansfield, J. F. ;
Pollock, T. M. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 457 (1-2) :292-299
[4]   High refractory, low misfit Ru-containing single-crystal superalloys [J].
Carroll, L. J. ;
Feng, Q. ;
Mansfield, J. F. ;
Pollock, T. M. .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (10) :2927-2938
[5]  
Chen J.L, UNPUB
[6]   EFFECTS OF Ru AND Cr ON γ/γ′ MICROSTRUCTURAL EVOLUTION OF Ni-BASED SINGLE CRYSTAL SUPERALLOYS DURING HEAT TREATMENT [J].
Chen Jingyang ;
Zhao Bin ;
Feng Qiang ;
Cao Lamei ;
Sun Zuqing .
ACTA METALLURGICA SINICA, 2010, 46 (08) :897-906
[7]   Solidification segregation in ruthenium-containing nickel-base superalloys [J].
Feng, Q ;
Carroll, LJ ;
Pollock, TM .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (06) :1949-1962
[8]   Solidification of high-refractory ruthenium-containing superalloys [J].
Feng, Q ;
Nandy, TK ;
Tin, S ;
Pollock, TM .
ACTA MATERIALIA, 2003, 51 (01) :269-284
[9]   RHENIUM ADDITIONS TO A NI-BASE SUPERALLOY - EFFECTS ON MICROSTRUCTURE [J].
GIAMEI, AF ;
ANTON, DL .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1985, 16 (11) :1997-2005
[10]   Mechanisms of topologically close-packed phase suppression in an experimental ruthenium-bearing single-crystal nickel-base superalloy at 1100 °C [J].
Hobbs, R. A. ;
Zhang, L. ;
Rae, C. M. F. ;
Tin, S. .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2008, 39A (05) :1014-1025
123