Diffusion characteristics and atomic mobilities for bcc refractory Mo-Ta, Mo-W, and Mo-Nb alloys

被引：26

作者：

Liu, Yajun ^{[1
]}

Long, Zhaohui ^{[2
]}

Du, Yong ^{[3
]}

Sheng, Guang ^{[4
]}

Wang, Jiang ^{[5
]}

Zhang, Lijun ^{[3
]}

机构：

[1] Montana State Univ, Western Transportat Inst, Bozeman, MT 59715 USA

[2] Xiangtan Univ, Sch Mech Engn, Xiangtan 411105, Hunan, Peoples R China

[3] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

[4] Sci Forming Technol Corp, Columbus, OH 43235 USA

[5] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin 541004, Guangxi, Peoples R China

来源：

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2012年 / 36卷

关键词：

Diffusion; Mobility; Dictra; W-Ta; W-Mo; W-Nb; MOLYBDENUM-TUNGSTEN; SYSTEM; ZR; INTERDIFFUSION; PARAMETERS; NIOBIUM; PHASES;

D O I：

10.1016/j.calphad.2011.12.004

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

CALPHAD kinetics has gained rapid development in recent years, due to its wide applications in engineering novel alloys. In order to simulate the diffusion problems of interest, high-quality atomic. mobilities are indispensable. Based on the thermodynamic descriptions for the Mo-Ta, Mo-W, and Mo-Nb binary systems, the atomic mobilities for such alloys are inversely parameterized in this work, including the mobility end-members as well as the interaction parameters. Due to the large experimental errors for diffusion characteristics of refractory alloys at high temperatures, the experimental data are quite scattered. However, this work allows such data to be carefully selected and a set of self-consistent atomic mobilities to be well established, which can be used to study diffusion-related characteristics for Mo-based refractory alloys. Published by Elsevier Ltd

引用

页码：110 / 117

页数：8

共 32 条

[21] Study of atomic mobilities and diffusion characteristics in bcc Ti-Ta and Ta-W alloys [J].

Liu, Yajun ;

Zhang, Lijun ;

Du, Yong ;

Wang, Jiang ;

Liang, Dong .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2010, 34 (03) :310-316

[22] Computational Study of Mobilities and Diffusivities in bcc Ti-Zr and bcc Ti-Mo Alloys [J].

Liu, Yajun ;

Zhang, Lijun ;

Yu, Di .

JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION, 2009, 30 (04) :334-344

[23]

MAIER K, 1979, Z METALLKD, V70, P271

[24] Diffusion Parameters in the Nb-Mo System: Revisited [J].

Prasad, S. ;

Paul, A. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2009, 40A (07) :1512-1514

[25] DIFFUSION IN SYSTEMS TI-NB, ZR-NB, V-NB, W-NB [J].

ROUX, F ;

VIGNES, A .

REVUE DE PHYSIQUE APPLIQUEE, 1970, 5 (03) :393-&

[26]

Roux F., 1972, THESIS U NANCY

[27] High temperature fatigue behaviour of TZM molybdenum alloy under mechanical and thermomechanical cyclic loads [J].

Shi, HJ ;

Niu, LS ;

Korn, C ;

Pluvinage, G .

JOURNAL OF NUCLEAR MATERIALS, 2000, 278 (2-3) :328-333

[28] Application of ab initio and CALPHAD thermodynamics to Mo-Ta-W alloys -: art. no. 094206 [J].

Turchi, PEA ;

Drchal, V ;

Kudrnovsky, J ;

Colinet, C ;

Kaufman, L ;

Liu, ZK .

PHYSICAL REVIEW B, 2005, 71 (09)

[29]

UGASTE YE, 1975, FIZ MET METALLOVED+, V40, P567

[30]

Winklelman A.H., 1963, THESIS AIR FORCE I T

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