Influence of the strain rate and deformation temperature on the deformability of Ti-Ni SMAs: A preliminary study

6th International Conference on Nanomaterials by Severe Plastic Deformation

材料科学;化学

Kreitcberg, A.^1,2 ; Prokoshkin, S.^1 ; Brailovski, V.^2 ; Gunderov, D.^3,4 ; Khomutov, M.^1

National University of Science and Technology MISiS, Moscow, Russia^1

Ecole de Technologie Supérieure, Montreal, Canada^2

Ufa State Aviation Technical University, Ufa, Russia^3

Institute of Molecule and Crystal Physics, RAS, Ufa, Russia^4

关键词: Coarse-grained Ti;    Deformation temperatures;    Jump tests;    Maximum strains;    Ni alloys;    Stain rates;    Strain rate sensitivity;    Temperature range;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/63/1/012109/pdf
DOI  :  10.1088/1757-899X/63/1/012109

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The strain-rate sensitivity of coarse-grained Ti-50.0at.%Ni alloy was studied in the 20 to 500°C temperature range and 10-3to 10-5s-1strain-rate range using the stain-rate jump test. The strain rate sensitivity at a strain rate as low as 10-6s-1was determined using the creep test. A maximum strain-rate-sensitivity exponent m of 0.5 was measured at 500°C in the [10-5-10-6]s-1strain-rate range.