Low-Temperature Superplasticity and Deformation Mechanism of Ti-6Al-4V Alloy
AbstractThe low-temperature superplastic tensile behavior and the deformation mechanisms of Ti-6Al-4V alloy are investigated in this paper. Through the experiments carried out, elongation to failure (δ) is calculated and a set of values are derived that subsequently includes the strain rate sensitivity exponent (m), deformation activation energy (Q) at low-temperature superplastic deformation, and the variation of δ, m and Q at different strain rates and temperatures. Microstructures are observed before and after superplastic deformation. The deformation mechanism maps incorporating the density of dislocations inside grains at temperatures of 973 and 1123 K are drawn respectively. By applying the elevated temperature deformation mechanism maps based on Burgers vector compensated grain size and modulus compensated stress, the dislocation quantities and low-temperature superplastic deformation mechanisms of Ti-6Al-4V alloy at different temperatures within appropriate processing regime are elucidated. View Full-Text
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Zhou, G.; Chen, L.; Liu, L.; Liu, H.; Peng, H.; Zhong, Y. Low-Temperature Superplasticity and Deformation Mechanism of Ti-6Al-4V Alloy. Materials 2018, 11, 1212.
Zhou G, Chen L, Liu L, Liu H, Peng H, Zhong Y. Low-Temperature Superplasticity and Deformation Mechanism of Ti-6Al-4V Alloy. Materials. 2018; 11(7):1212.Chicago/Turabian Style
Zhou, Ge; Chen, Lijia; Liu, Lirong; Liu, Haijian; Peng, Heli; Zhong, Yiping. 2018. "Low-Temperature Superplasticity and Deformation Mechanism of Ti-6Al-4V Alloy." Materials 11, no. 7: 1212.
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