Ni75MnxAl25-x合金早期沉淀相的微观相场模拟

中国有色金属学报, 2012, 22(1): 208-215.

Ni75MnxAl25-x合金早期沉淀相的微观相场模拟

禚昌岩 ^1, , 王永欣 ^2, , 陈铮 ^3, , 王晓鹏 ^4,

1.西北工业大学凝固技术国家重点实验室,西安710072

2.西北工业大学凝固技术国家重点实验室,西安710072

3.西北工业大学凝固技术国家重点实验室,西安710072

4.西北工业大学凝固技术国家重点实验室,西安710072

关键词： Ni75MnxAl25-x合金 , 微观相场 , 序参数 , L10早期沉淀相

Microscopic phase-field simulation for formation of pre-precipitation phase in Ni75Al25-xMnx alloy

采用三元微观相场动力学模型研究Ni75MnxAl25-x合金早期沉淀相的形成过程.对合金微观组织演化图像、有序相体积分数曲线、序参数曲线及占位几率的分析表明:该合金首先析出L10结构,随后L10结构向L12结构转变,L12结构在L10结构的内部析出.随着Al浓度的增大,等成分有序化阶段缩短；且L10结构体积分数增大,发生结构转变的时间提前.Al和Mn原子在(001)和(002)面几乎同时有序排列,但是一定时间后(002)面原子开始贫化,发生结构转变,Al原子主要占据β位,Mn原子主要占据α11位.合金最终析出单一的L12伪二元结构.

参考文献

[1]	梁敏洁,陈铮,王永欣,褚忠.温度对Ni-Al-Fe合金早期沉淀过程的影响[J].稀有金属材料与工程,2007(10):1797-1801.
[2]	苗树芳,陈铮,王永欣,徐聪,马锐,张明义.L10相和L12相结构原位转变的微观相场法模拟[J].金属学报,2009(05):630-634.
[3]	SIROTA E B;HERHOLD A B .Transient phase-induced nucleation[J].Science,1999,283:529-532.
[4]	Ni J;Gu BL .Transient ordered states during relaxation from a quenched disordered state to an equilibrium disordered state[J].Physical review letters,1997(20):3922-3925.
[5]	REINHARD L;TURCHI P E A .Transient ordered states in phase-separating alloys[J].Physical Review Letters,1994,72(01):120-123.
[6]	BUSGEN T;FEYDT J;HASSDORF R;THIENHAUS S MOSKE M .Ab initio calculation of structure and lattice dynamics in Ni-Al-Mn shape memory alloys[J].Physical Review B:Condensed Matter,2004,70:014111.
[7]	V. I. Goman'kov;A. I. Kovalev;D. L. Vainshtein .Atomic Ordering in Microcrystalline Alloys of the Ni_3Mn-Ni_3Al System[J].The Physics of Metals and Metallography,2004(1):92-97.
[8]	GOMAN'KOV V I;FEDOTOV V G;GEZALYAN A D;TRET'YAKOVA B N SUMIN V V CHEVYCHELOV V S .Atomic ordering in Ni3Mn-Ni3Ti and Ni3Mn-Ni3V alloys[J].Izv Ross Akad Nauk Met,1993,4(08):200-204.
[9]	GOMAN'KOV V I;GEZALYAN A D B N;TRET'YAKOVA B N .Structural and magnetic states upon concentration transition Ni3Mn-Ni3V[J].Fizika Metallov I Metallovedenie,1990,10:80-84.
[10]	VIJAY K S;SAURABH K S;RATNAMALA C;GOVIND G SHIVPRASAD S M NIGAM A K .Structural and magnetic phenomena in Ni53Mn25Al22 thin film prepared by RF magnetron sputtering[J].Applied Physics,2009,95:114101.
[11]	SAURABH K S;VIJAY K S;LAJOS K;VLADIMIR V KHOVAYLO V RYOUSUKE K MAKOTO N RATNAMALA C .Systematic study of structural,transport,and magnetic properties of Ni52+xMn26-xA122 (1≤x≤5) melt-spun ribbons[J].Journal of Applied Physics,2011,109:083915.
[12]	Kainuma R.;Ishikawa K.;Ohnuma I.;Ishida K.;Ise M. .Phase equilibria and stability of the B2 phase in the Ni-Mn-Al and Co-Mn-Al systems[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,1998(1/2):173-180.
[13]	GOMAN'KOV V I;TRET'YAKOVA S M;FEDOTOV V G;CHEVYCHELOVI V A .Processes of atomic ordering in microcrystalline ternary alloys based on Ni3Mn[J].Metal Science and Heat Treatment,1995,37:6-8.
[14]	V. I. Goman'kov;A. I. Kovalev;D. L. Vainshtein;O. M. Zhigalina;S. M. Tret'yakova;L. E. Fykin .Fine Crystalline Structure of Microcrystalline Alloys[J].Doklady. Physics,2004(5):285-288.
[15]	A. M. Glezer;V. I. Goman’kov;E. N. Blinova;M. Yu. Yazvitskii;L. E. Fykin;V. A. Chevychelov .Abnormal behavior of the atomic order parameter during quenching of the Ni3(Mn,V) alloys from the liquid state[J].Russian physics journal,2006(1):1-4.
[16]	R.Poduri;L.-Q.Chen .Computer simulation of atomic ordering and compositional clustering in the pseudobinary Ni_3Al-Ni_3V system[J].Acta materialia,1998(5):1719-1729.

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Ni75MnxAl25-x合金早期沉淀相的微观相场模拟

Microscopic phase-field simulation for formation of pre-precipitation phase in Ni75Al25-xMnx alloy

参考文献