Электронный каталог

Статья

Shuitcev, A.V.
Microstructure and Martensitic Transformation in Quaternary NiTiHfV Alloy / A.V.Shuitcev, R.N.Vasin, [a.o.] // Transactions of Nonferrous Metals Society of China [Electronic resource]. – 2024. – Vol. 34, No. 10. – P. 3282-3294. – URL: https://doi.org/10.1016/S1003-6326(24)66608-2. – Bibliogr.: 55.

The effect of age hardening on the microstructure, martensitic transformation behavior, and shape memory properties of the (Ni&sub(50)Ti&sub(30)Hf&sub(2)0)&sub(95)V&sub(5) alloy was investigated by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, differential scanning calorimetry, microhardness, and bending tests. The results demonstrate a significant influence of V addition on the microstructure of the alloy. V addition leads to the formation of a (Ni,V)&sub(2)(Ti,Hf)-type Laves phase, which coexists with B19‘ martensite at room temperature. Aging at 550 &sup(o)C results in precipitation hardening due to the formation of nano-scale orthorhombic H-phase, with the peak hardness observed after 3 h of aging. The alloy at peak hardness state exhibits higher transformation strain and lower unrecovered strain compared to the solution-treated sample. The aged sample achieves a maximum transformation strain of 1.56% under 500 MPa.



Спец.(статьи,препринты) = С 36 - Физика твердого тела$
Спец.(статьи,препринты) = С 332.8 - Синхротронное излучение. Лазеры на свободных электронах. Получение и использование рентгеновских лучей
Спец.(статьи,препринты) = С 350 - Приложения методов ядерной физики в смежных областях
ОИЯИ = ОИЯИ (JINR)2024
Бюллетени = 1/025