Computer Simulation of Evolution of Ordering Phases and the Boundaries of Ni-Cr-Al Alloy

被引：0

作者：

Zhong, Chu ^{[1
]}

Zhao Guoqun ^{[1
]}

机构：

[1] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China

来源：

FUNDAMENTAL OF CHEMICAL ENGINEERING, PTS 1-3 | 2011年 / 233-235卷

关键词：

Ni-Cr-Al alloy; microscope phase-field mode; precipitation; ordering parameter; TERNARY; INTERMETALLICS; NI3AL; FE;

D O I：

10.4028/www.scientific.net/AMR.233-235.1782

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Based on the microscope phase-field model, the evolution of atom morphology, the long range order(lro) parameter and concentration can be gotten, and atomic clustering and ordering during the precipitation process of Ni-Cr-Al alloy could be obtained. The Ni-14at.%Cr-15.5at.%Al alloy is studied and the temperature of precipitation are 973K. It was showed that the ordering of both Al and Cr atoms take place simultaneously during the precipitation process of Ni-Al-Cr alloy, Cr atoms transfer to the boundaries of L1(2) phases, the domain of rich Cr atoms are formed. At the boundaries of L1(2) phases, Cr atoms may substitute the Al sublattice, and the D0(22) phases are formed.

引用

页码：1782 / 1785

页数：4

共 50 条

[21] Microscopic phase-field simulation for Ni-Cr-Al alloy during middle heat treatment
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China
不详
[J]. Xiyou Jinshu Cailiao Yu Gongcheng, 2006, 9 (1461-1465):
[22] Microscopic phase-field simulation of the process of middle heat treatment of Ni-Cr-Al alloy
Chu Zhong
Zhaoguoqun
[J]. INFORMATION ENGINEERING FOR MECHANICS AND MATERIALS SCIENCE, PTS 1 AND 2, 2011, 80-81 : 36 - 39
[23] CASTABILITY OF NI-CR-AL SYSTEM
CHEEKS, T
[J]. JOURNAL OF METALS, 1981, 33 (09): : A4 - A4
[24] Microscopic phase-field simulation for Ni-Cr-Al alloy during middle heat treatment
Chu Zhong
Chen Zheng
Wang Yongxin
Xu Huayong
Lu Yanli
[J]. RARE METAL MATERIALS AND ENGINEERING, 2006, 35 (09) : 1461 - 1465
[25] THERMODYNAMICS OF NI-CR-AL ALLOYS
OFORKA, NC
ARGENT, BB
[J]. JOURNAL OF THE LESS-COMMON METALS, 1985, 114 (01): : 97 - 109
[26] Microstructures from Ni-Cr-Al diffusion couples illustrating ''three types of boundaries''
Jin, C
Morral, JE
[J]. SCRIPTA MATERIALIA, 1997, 37 (05) : 621 - 626
[27] Preparation and mechanical properties of Ni-Cr-Al alloy by EB-PVD
Guan, CL
He, XD
Li, Y
[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2005, 15 (02) : 275 - 279
[28] Evaluation of EB-PVD deposited Ni-Cr-Al alloy foil
Guan, Chunlong
Liu, Guoqin
He, Xiaodong
Shan, Yingchun
[J]. JOURNAL OF MATERIALS SCIENCE, 2007, 42 (04) : 1279 - 1284
[29] Oxidation behaviour of microcrystalline Ni-Cr-Al alloy coatings at 900°C
Liu, ZY
Gao, W
[J]. SCRIPTA MATERIALIA, 1998, 38 (06) : 877 - 885
[30] Creep of Ni-Al and Ni-Cr-Al superalloy foams
Choe, H
Dunand, DC
[J]. AFFORDABLE METAL MATRIX COMPOSITES FOR HIGH-PERFORMANCE APPLICATIONS II, 2003, : 35 - 41

← 1 2 3 4 5 →