有序能对Ni75Al15Cr10合金Cr替代行为影响的微观相场研究

金属学报

2009, Vol. 45

Issue (5): 635-640

论文

本期目录 | 过刊浏览

有序能对Ni₇₅Al₁₅Cr₁₀合金Cr替代行为影响的微观相场研究

赵彦¹; 陈铮^{1; 2};王永欣¹;霍进良¹; 张利鹏¹; 张明义¹

1. 西北工业大学材料学院; 西安 710072
2. 西北工业大学凝固技术国家重点实验室; 西安 710072

A MICROSCOPIC PHASE–FIELD STUDY FOR THE INFLUENCE OF ORDERING ENERGY ON Cr SUBSTITUTION BEHAVIOR IN Ni₇₅Al₁₅Cr₁₀ ALLOY

ZHAO Yan ¹; CHEN Zheng ^1;2; WANG Yongxin ¹; HUO Jinliang ¹; ZHANG Lipeng ¹; ZHANG Mingyi ¹

1. School of Materials Science and Engineering; Northwestern Polytechnical University; Xi’an 710072
2. State Key Laboratory of Solidification Processing; Northwestern Polytechnical University; Xi’an 710072

引用本文:

赵彦陈铮王永欣霍进良张利鹏张明义. 有序能对Ni₇₅Al₁₅Cr₁₀合金Cr替代行为影响的微观相场研究[J]. 金属学报, 2009, 45(5): 635-640.
. A MICROSCOPIC PHASE–FIELD STUDY FOR THE INFLUENCE OF ORDERING ENERGY ON Cr SUBSTITUTION BEHAVIOR IN Ni₇₅Al₁₅Cr₁₀ ALLOY[J]. Acta Metall Sin, 2009, 45(5): 635-640.

全文: PDF(1497 KB)

摘要:

通过微观相场方法研究了Ni₇₅Al₁₅Cr₁₀合金在1073 K时效时, 不同原子间有序能下Cr原子的替代行为. 结果表明, 在γ'有序相中, 同时存在Ni--Al原子反位和Cr原子对Ni和Al原子的替代行为, 其中以替代行为为主; 随着第1,3层Ni--Al和Ni--Cr有序能的增大, Cr原子替代Al位的趋势增大, 替代Ni位的趋势减小; 第2, 4层Ni--Al和Ni--Cr有序能增大时, Cr原子替代Ni位的趋势增大, 替代Al位的趋势减小; 第1, 3层Al--Cr有序能增大时, Cr替代Ni位的趋势增大, 替代Al位的趋势减小; 第2, 4层Al--Cr有序能增大时, Cr替代Ni位的趋势减小, 替代Al位的趋势增大.

关键词 ：有序能, Ni₇₅Al₁₅Cr₁₀合金, 微观相场, 替代行为

Abstract：

The microscopic phase–field model based on long range order (LRO) method was proposed to study Cr substitution behavior in Ni₇₅Al₁₅Cr₁₀ alloy aged at 1073 K. This has been demonstrated by short range order (SRO) methods and experiments such as pseudo–potential, Monte Carlo method and Rutherford back scattering analysis (RBS). Adding ±4 meV to the ordering energy of Ni–Al, Ni–Cr and Al–Cr in 1st—4th nearest–neighborhoods is used to describe the influence of potential field on substitution. On the analysis of atomic images, the order parameters and Cr occupation probabilities, results show that there are coexisted Ni–Al anti–site and Cr substitution for Ni and Al in L12 ordered phase, and Cr substitution occurs much more often than Ni–Al anti–site. As the ordering energies of Ni–Al and Ni–Cr in 1st and 3rd nearest–neighborhoods increase, there is a more increasing tendency of substitution of Cr for Al than for Ni. For the 2nd and 4th nearest–neighborhoods, the
ordering energy makes the tendency of substitution of Cr for Ni increase. Otherwise, with the 1st and 3rd nearest–neighborhoods ordering energies of Al–Cr increasing, the tendency of substitution of Cr increases for Ni but decreases for Al, which is opposite to the cases for the 2nd and 4th nearest–neighborhoods.

Key words： ordering energy Ni₇₅Al₁₅Cr₁₀ alloy microscopic phase–field substitute behavior

收稿日期: 2008-01-14

ZTFLH:

TG111.5

基金资助:

国家自然科学基金项目50671084和陕西省自然科学基金项目资助

作者简介: 赵彦, 男, 1981年生, 博士生

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https://www.ams.org.cn/CN/ 或 https://www.ams.org.cn/CN/Y2009/V45/I5/635

[1] Rawling R D, Staton–Bevan A. Mater Sci, 1975; 10: 505
[2] Karg A V, Fornwalt D E, Kriege O H. Inst Met, 1971; 99:301
[3] Bohn H G, Vianden R J. In: Stoloff N S, Koch C C, Liu C T, Izumi O eds., High–Temperatrue Ordered Intermetallic Alloys II, Pittsburgh: MRS Symp, 1987: 123
[4] Miller M K, Horton J. In: Stoloff N S, Koch C C, Liu C T, Izumi O eds., High–Temperatrue Ordered Intermetallic Alloys II, Pittsburgh: MRS Symp, 1987: 117
[5] Bohn H G, Williams J M, Barret J H, Liu C T. In: Stoloff N S, Koch C C, Liu C T, Izumi O eds., High–Temperatrue Ordered Intermetallic Alloys II, Pittsburgh: MRS Symp,
1987: 127
[6] Saito Y. Mater Sci Eng, 1997; A223: 10
[7] Mekhrabov A O, Vdeniz M V, Arer M M. Acta Mater, 1997; 45: 1077
[8] Chu Z, Chen Z, Wang Y X, Lu Y L, Li Y S. Chim Phys Lett, 2005; 8: 1841
[9] Poduri R, Chen L Q. Acta Mater, 1998; 46: 1719
[10] Poduri R, Chen L Q. Acta Mater, 1997; 45: 245
[11] Lu Y L, Chen Z, Li Y S, Wang Y X. Acta Metall Sin, 2007; 43: 291
(卢艳丽, 陈铮, 李永胜, 王永欣. 金属学报, 2007; 43: 291)
[12] Miyazaki T, Koyama T, Kozakai T. Mater Sci Eng, 2001; A312: 38
[13] Caudron R, Barrachin, Finnel M Y. Physica, 1992; 2B: 1145
[14] Chen L Q, Simmons J A. Acta Metall Mater, 1994; 42: 2943
[15] Pareige C, Soisson F, Martin G, Blavette D. Acta Mater, 1999; 6: 1889
[16] Wu Y P, Tso N C, Sanchez J M, Tien J K. Acta Metall, 1989; 37: 2835

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