Phase Transformation, Twinning, and Detwinning of NiTi Shape-Memory Alloy Subject to a Shock Wave Based on Molecular-Dynamics Simulation

• Published in: Materials Vol. 11; no. 11; p. 2334
• Main Authors: Wang, Man, Jiang, Shuyong, Zhang, Yanqiu
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 21.11.2018; MDPI
• Subjects: Alloys; Austenite; Crystal structure; Cyclic loads; Engineering; Experiments; Grain size; Intermetallic compounds; Lasers; Martensite; Martensitic transformations; Mechanical properties; Molecular dynamics; Nickel base alloys; Nickel titanides; Phase transitions; Repeated loading; Researchers; Shape effects; Shape memory; Shape memory alloys; Shock waves; Studies; Superelasticity; Temperature effects; Twinning; China; molecular-dynamics simulation; shape-memory alloy; NiTi alloy; shock loading; matrensitic transformation
• ISSN: 1996-1944; 1996-1944
• DOI: 10.3390/ma11112334

Martensitic transformation, reverse martensitic transformation, twinning, and detwinning of equiatomic nickel–titanium shape-memory alloy (NiTi SMA) under the action of a shock wave are studied using a molecular-dynamics simulation. In the loading process of a shock wave, B2 austenite is transformed...