Clausius-Duhem inequality description of superelasticity in Ni-Ti polycrystal as a dissipative process

详细信息	查看全文 | 推荐本文 |

• 作者：Yohei Yasuda ; Hiroyuki Kato ; ^{hkato@eng.hokudai.ac.jp} ; Kazuaki Sasaki
• 关键词：Mechanical properties ; Shape memory alloys ; The Clausius&ndash ; Duhem inequality ; Phase transformation
• 刊名：Scripta Materialia
• 出版年：2012
• 期刊代码：157_13596462
• 类别：et
• 出版时间：June, 2012
• 卷：66
• 期：11
• 页码：939-942
• 文件大小：1525 K

摘要

Superelasticity in Ni-Ti polycrystal is examined in terms of the second law of thermodynamics. As a consequence of the law, both the phase equilibrium and the dissipation of mechanical energy during the stress-induced martensitic transformation have been formulated simultaneously by means of the Clausius-Duhem inequality. The flow stress of superelasticity has been derived as the function of temperature. The energy dissipated in the shape memory effect is briefly discussed.