Features of radiation damage of Ni-Ti alloy under exposure to heavy ions of gaseous elements

International Scientific Conference on "Radiation-Thermal Effects and Processes in Inorganic Materials"

材料科学;物理学

Poltavtseva, V.P.^1 ; Kislitsin, S.B.^1 ; Satpayev, D.A.^1 ; Mylnikova, T.S.^2 ; Chernyavskii, A.V.^2

Institute of Nuclear Physics, Almaty, Kazakhstan^1

National Research Tomsk Polytechnic University, Tomsk, Russia^2

关键词: Martensitic transformation temperatures;    Near-surface layers;    NiTi alloys;    Phase state;    Radiation-hardened;    Second layer;    Temperature range;    Two-layer;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/81/1/012034/pdf
DOI  :  10.1088/1757-899X/81/1/012034

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The consistent patterns of changes in structural and phase state, hardening and temperature ranges of martensitic transformations in Ni-Ti alloy with the shape memory effect after implantation of heavy ions16O3+,40Ar8+and84Kr15+under comparable parameters have been experimentally studied. It is found that under the impact of84Kr15+ions, a two-layer surface structure with radiation-hardened second layer is formed, radiation-stimulated phase transformation B19'→B2 occurs in the near-surface layer and out-range area, and the martensitic transformation temperature increases toward higher values after implantation of40Ar8+and84Kr15+ions.