Quantitative Phase Field Simulation of α Particle Dissolution in Ti-6A1-4V Alloys Below β Transus Temperature
文献类型：期刊论文
| 作者 | Yang Mei2; Wang Gang3; Liu Tao2; Zhao Wenjuan1; Xu Dongsheng4 |
| 刊名 | Acta Metallurgica Sinica(English Letters)
 |
| 出版日期 | 2017 |
| 卷号 | 30期号:8页码:745-752 |
| 关键词 | Dissolution Phase field model Ti-6A1-4V Initial PSD Space distribution |
| ISSN号 | 1006-7191 |
| 其他题名 | Quantitative Phase Field Simulation of α Particle Dissolution in Ti-6A1-4V Alloys Below β Transus Temperature |
| 英文摘要 | 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 α particles in Ti-6Al-4V alloy below β 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 α particles decay with time as: f = f_(eq)+ (f_o -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 A1 and V concentration fields around the particles appear more obvious soft impingement. |
| 语种 | 英语 |
| CSCD记录号 | CSCD:6031319 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/157785]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.湘潭大学 2.江苏理工学院 3.华南理工大学 4.中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Yang Mei,Wang Gang,Liu Tao,et al. Quantitative Phase Field Simulation of α Particle Dissolution in Ti-6A1-4V Alloys Below β Transus Temperature[J]. Acta Metallurgica Sinica(English Letters),2017,30(8):745-752. |
| APA | Yang Mei,Wang Gang,Liu Tao,Zhao Wenjuan,&Xu Dongsheng.(2017).Quantitative Phase Field Simulation of α Particle Dissolution in Ti-6A1-4V Alloys Below β Transus Temperature.Acta Metallurgica Sinica(English Letters),30(8),745-752. |
| MLA | Yang Mei,et al."Quantitative Phase Field Simulation of α Particle Dissolution in Ti-6A1-4V Alloys Below β Transus Temperature".Acta Metallurgica Sinica(English Letters) 30.8(2017):745-752. |
入库方式： OAI收割
来源：金属研究所
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