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Quantitative Phase Field Simulation of alpha Particle Dissolution in Ti-6Al-4V Alloys Below beta Transus Temperature
Yang, Mei; Wang, Gang; Liu, Tao; Zhao, Wen-Juan; Xu, Dong-Sheng; Liu, T (reprint author), Jiangsu Univ Technol, Sch Mat & Engn, Changzhou 213001, Peoples R China.
2017-08-01
发表期刊ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
卷号30期号:8页码:745-752
摘要A quantitative phase field method of multi-component diffusion-controlled phase transformations coupled with the Kim-Kim-Suzuki model was applied to study the effect of initial particle size distribution (PSD) in 3D and space distribution in 2D on dissolution of alpha particles in Ti-6Al-4V alloy below beta transus temperature in real time and length scale. The thermodynamic and mobility data were obtained from Thermo-Calc and DICTRA softwares, respectively. The results show that the volume fractions of alpha particles decay with time as: f = f(eq) + (f(0) - f(eq)) exp(-Kt(n)) for four cases of PSD. The sequence of dissolution kinetics from fast to slow is: uniform PSD, normal PSD, lognormal PSD and bimodal PSD. The space distribution is found to be a major factor affecting the dissolution kinetics and the microstructures. When the distance of the particles is less than critical value, the dissolution rates reduce with the decrease in distance. The Al and V concentration fields around the particles appear more obvious soft impingement.; A quantitative phase field method of multi-component diffusion-controlled phase transformations coupled with the Kim-Kim-Suzuki model was applied to study the effect of initial particle size distribution (PSD) in 3D and space distribution in 2D on dissolution of alpha particles in Ti-6Al-4V alloy below beta transus temperature in real time and length scale. The thermodynamic and mobility data were obtained from Thermo-Calc and DICTRA softwares, respectively. The results show that the volume fractions of alpha particles decay with time as: f = f(eq) + (f(0) - f(eq)) exp(-Kt(n)) for four cases of PSD. The sequence of dissolution kinetics from fast to slow is: uniform PSD, normal PSD, lognormal PSD and bimodal PSD. The space distribution is found to be a major factor affecting the dissolution kinetics and the microstructures. When the distance of the particles is less than critical value, the dissolution rates reduce with the decrease in distance. The Al and V concentration fields around the particles appear more obvious soft impingement.
部门归属[yang, mei ; liu, tao] jiangsu univ technol, sch mat & engn, changzhou 213001, peoples r china ; [wang, gang] south china univ technol, dept mat sci & engn, guangzhou 510640, guangdong, peoples r china ; [zhao, wen-juan] xiangtan univ, sch mech engn, xiangtan 411105, peoples r china ; [xu, dong-sheng] chinese acad sci, inst met res, shenyang 110016, peoples r china
关键词Dissolution Phase Field Model Ti-6al-4v Initial Psd Space Distribution
学科领域Metallurgy & Metallurgical Engineering
资助者National Natural Science Foundation of China [51601078, 51201147]; National Key R&D Program of China [2016YFB0701302]; Informalization Construction Program of Chinese Academy of Science [INFO-115-B01]; Shenyang Supercomputer Centers of Chinese Academy of Science
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78027
专题中国科学院金属研究所
通讯作者Liu, T (reprint author), Jiangsu Univ Technol, Sch Mat & Engn, Changzhou 213001, Peoples R China.
推荐引用方式
GB/T 7714
Yang, Mei,Wang, Gang,Liu, Tao,et al. Quantitative Phase Field Simulation of alpha Particle Dissolution in Ti-6Al-4V Alloys Below beta Transus Temperature[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2017,30(8):745-752.
APA Yang, Mei,Wang, Gang,Liu, Tao,Zhao, Wen-Juan,Xu, Dong-Sheng,&Liu, T .(2017).Quantitative Phase Field Simulation of alpha Particle Dissolution in Ti-6Al-4V Alloys Below beta Transus Temperature.ACTA METALLURGICA SINICA-ENGLISH LETTERS,30(8),745-752.
MLA Yang, Mei,et al."Quantitative Phase Field Simulation of alpha Particle Dissolution in Ti-6Al-4V Alloys Below beta Transus Temperature".ACTA METALLURGICA SINICA-ENGLISH LETTERS 30.8(2017):745-752.
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