TY - JOUR

T1 - Ultra-high temperature Ti-Hf-Zr-Ni-Cu-Co shape memory alloy

AU - Сибирев, Алексей Владимирович

AU - Беляев, Сергей Павлович

AU - Реснина, Наталья Николаевна

AU - Поникарова, Ирина Викторовна

AU - Бикбаев, Рашид Менналиевич

AU - Базлов, Андрей Игоревич

AU - Калганов, Владимир Дмитриевич

AU - Иванов, Алексей Максимович

PY - 2024/9/1

Y1 - 2024/9/1

N2 - A new Ti9Hf39Zr4Ni30Cu9Co9 shape memory alloy was developed that underwent the two stages B2 ↔ B19′ martensitic transformation at ultra-high temperatures: Ms = 419 °C, Mf = 286 °C, As = 447 °C, and Af = 562 °C. Thermal cycling in a range of 100 – 600 °C decreased the transformation temperature but did not suppress the transformation. The strain accumulation was found on cooling under stress and the strain recovery was observed on heating without stress. An increase in the stress acting on cooling from 140 MPa to 460 MPa increased the recoverable strain from 0.9 % to 3.5 %.

AB - A new Ti9Hf39Zr4Ni30Cu9Co9 shape memory alloy was developed that underwent the two stages B2 ↔ B19′ martensitic transformation at ultra-high temperatures: Ms = 419 °C, Mf = 286 °C, As = 447 °C, and Af = 562 °C. Thermal cycling in a range of 100 – 600 °C decreased the transformation temperature but did not suppress the transformation. The strain accumulation was found on cooling under stress and the strain recovery was observed on heating without stress. An increase in the stress acting on cooling from 140 MPa to 460 MPa increased the recoverable strain from 0.9 % to 3.5 %.

KW - High-temperature shape memory effect

KW - Martensitic transformation

KW - Multi-component alloys

KW - High-temperature shape memory effect

KW - Martensitic transformation

KW - Multi-component alloys

UR - https://www.mendeley.com/catalogue/a9e1feb9-ff5e-3af2-b38d-5800b659b270/

U2 - 10.1016/j.matlet.2024.136847

DO - 10.1016/j.matlet.2024.136847

M3 - Article

VL - 370

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

M1 - 136847

ER -