Formation mechanism of ultrafine α plus β structure in Ti-6Al-4V alloy during β→ α m → α plus β continuous phase transformation
文献类型：期刊论文
| 作者 | Hu, Jianan1,2,3; Jiang, Yuan1; Yang, Yi1; Xing, Hui4; Han, Fuzhou2; Zhou, Gang1; Zhang, Kai1,5,6; Xin, Shewei7; Zhang, Siyuan7; Huang, Jian8 |
| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 246页码:7 |
| 关键词 | Phase transformation Massive alpha Ti-6Al-4V alloy Microstructure |
| ISSN号 | 1359-6462 |
| DOI | 10.1016/j.scriptamat.2024.116066 |
| 通讯作者 | Yang, Yi(yiyang.imr@163.com) ; Xing, Hui(xinghui@sjtu.edu.cn) |
| 英文摘要 | Although massive transformation has been increasingly observed in titanium alloys, the decomposition mechanism of the massive transformation product (alpha m) is still unclear. Here, the beta ->alpha m ->alpha+beta continuous phase transformation in Ti-6Al-4V alloy during cooling was studied. We found that massive transformation occurs at a moderate cooling rate below 291.5 degrees C/s, forming irregular featureless alpha m. The thermodynamically unstable alpha m is supersaturated with beta stabilizers, and it tends to decompose into ultrafine alpha+beta structure during the continuous cooling at ever-lower cooling rates and temperatures. In the initial stage of alpha m decomposition, misfit dislocations appear as a predecessor and split alpha m into strips. Accompanied by the elemental redistribution, misfit dislocations are accommodated and replaced by beta phase. Both the formation and decomposition of alpha m follow the typical Burgers orientation relationship. |
| 资助项目 | National Natural Science Foundation of China[52271108] ; National Natural Science Foundation of China[51971237] ; National Natural Science Foundation of China[52271036] ; Natural Sci-ence Foundation of Shanghai[21ZR1445100] ; Foundation of Xi ' an Key Laboratory of High-Performance Titanium Alloy[NIN-HTL-2022-02] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001218154200001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Natural Sci-ence Foundation of Shanghai ; Foundation of Xi ' an Key Laboratory of High-Performance Titanium Alloy |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yang, Yi; Xing, Hui |
| 作者单位 | 1.Univ Shanghai Sci & Technol, Sch Mat & Chem, Shanghai 200093, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai 200240, Peoples R China 5.Monash Univ, Monash Ctr Addit Manufacture, Notting Hill, Vic 3168, Australia 6.Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia 7.Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China 8.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine M, Shanghai 200050, Peoples R China 9.Edith Cowan Univ, Ctr Adv Mat & Mfg, Sch Engn, 270 Joondalup Dr, Perth, WA 6027, Australia |
| 推荐引用方式 GB/T 7714 | Hu, Jianan,Jiang, Yuan,Yang, Yi,et al. Formation mechanism of ultrafine α plus β structure in Ti-6Al-4V alloy during β→ α m → α plus β continuous phase transformation[J]. SCRIPTA MATERIALIA,2024,246:7. |
| APA | Hu, Jianan.,Jiang, Yuan.,Yang, Yi.,Xing, Hui.,Han, Fuzhou.,...&Huang, Aijun.(2024).Formation mechanism of ultrafine α plus β structure in Ti-6Al-4V alloy during β→ α m → α plus β continuous phase transformation.SCRIPTA MATERIALIA,246,7. |
| MLA | Hu, Jianan,et al."Formation mechanism of ultrafine α plus β structure in Ti-6Al-4V alloy during β→ α m → α plus β continuous phase transformation".SCRIPTA MATERIALIA 246(2024):7. |
入库方式： OAI收割
来源：金属研究所
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