A Stress-Induced Martensitic Transformation in Aged Ti49Ni51 Alloy after High-Velocity Impact

作者：Zhu, Yingying; Wang, Haizhen; Gao, Zhiyong^*; Cai, Wei

来源：Materials, 2016, 9(7): 500.

DOI：10.3390/ma9070500

• aged Ti49Ni51 alloy
• microstructure
• martensitic transformation
• high-velocity impact
• regionalization characteristics

The effects of a high-velocity impact on the microstructure, phase transformation and mechanical property of aged Ti49Ni51 alloy are investigated. The transformation behavior and microstructure along the impact direction after impact emerge with regionalization characteristics, including a deformed region near the crater (0-4 mm) and an un-deformed region of the distal crater (5-6 mm). Stress-induced martensite is the main deformation mechanism in the deforming region of aged Ti49Ni51 alloy under high-velocity impact.

• 出版日期2016-7
• 单位哈尔滨工业大学