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Materials 2016, 9(7), 500; doi:10.3390/ma9070500

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

Science and Technology on Materials Performance Evaluation in Space Environment Laboratory, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
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Academic Editor: Martin O. Steinhauser
Received: 4 May 2016 / Revised: 3 June 2016 / Accepted: 16 June 2016 / Published: 23 June 2016
(This article belongs to the Special Issue Computational Multiscale Modeling and Simulation in Materials Science)
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Abstract

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. View Full-Text
Keywords: aged Ti49Ni51 alloy; microstructure; martensitic transformation; high-velocity impact; regionalization characteristics aged Ti49Ni51 alloy; microstructure; martensitic transformation; high-velocity impact; regionalization characteristics
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zhu, Y.; Wang, H.; Gao, Z.; Cai, W. A Stress-Induced Martensitic Transformation in Aged Ti49Ni51 Alloy after High-Velocity Impact. Materials 2016, 9, 500.

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