Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1637098 | Transactions of Nonferrous Metals Society of China | 2012 | 6 Pages |
Abstract
The morphology and formation mechanism of the substructure of martensite in TC21 alloy was investigated by XRD and TEM. The results showed that the martensitic transformation from β to αⳠoccurs upon quenching after solution treatment between 960-1000 °C. The antiphase boundary (APB)-like structure was observed clearly in the αⳠmartensite plates. The APB-like contrasts exist along the (001) and (020) planes of αⳠmartensite. This APB-like structure of αⳠmartensite was identified as a kind of stacking fault with an APB-like morphology induced by martensitic transformation and not by order/disorder transition. During martensitic transformation, martensitic domains nucleate and grow, eventually encounter each other, resulting in the formation of the APB-like contrast.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Yan-fei XU, Hui-qun LIU, Dan-qing YI, Zhi-shou ZHU, Feng ZHENG,