Coupled Effects of Strain Rate and Temperature on Deformation Twinning in Cu-Zn Alloy

Coupled Effects of Strain Rate and Temperature on Deformation Twinning in Cu-Zn Alloy

Zhou, P. ; Zhou, J.Q. ; Ye, Z.X. ; Jiang, E. ; Hu, W.B. ; Le, H.L.

Інші назви: Взаимосвязанное влияние скорости деформации и температуры на деформационное двойникование в сплаве Cu-Zn

Тема: Научно-технический раздел

УДК: 539.4

URI: http://dspace.nbuv.gov.ua/handle/123456789/173420

Посилання: Coupled Effects of Strain Rate and Temperature on Deformation Twinning in Cu-Zn Alloy / P. Zhou, J.Q. Zhou, Z.X. Ye, E. Jiang, W.B. Hu, H.L. Le // Проблемы прочности. — 2016. — № 1. — С. 82-90. — Бібліогр.: 23 назв. — англ.

Підтримка: This work was supported by National Natural Science Foundation of China (10872087, 11272143), Key Project of Chinese Ministry of Education (211061), Natural Science Foundation of Hubei Province (Q20111501) and the Program for Chinese New Century Excellent Talents in University (NCET-12-0712).

Дата: 2016

Завантажень: 418

Coupled Effects of Strain Rate and Temperature on Deformation Twinning in Cu-Zn Alloy

Анотація:

Cu-Zn alloy is an advanced material, but its deformation twinning mechanism still keeps unknown so far, especially the couple effects of temperature and strain rate. In this paper, a theoretical model of Cu-Zn alloy is proposed by considering the coupled effects of strain rate and temperature. The model can predict the experimentally observed tendency of the spacing evolution of twin boundary (TB) accurately, and it is known that low temperature and high strain rate will promote deformation twinning. Moreover, deformation twining is more susceptible to low temperature than to high strain rate, and TB spacing and twin layer thickness will decrease with high strain rate and low temperature.

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