Mechanical response of electron beam irradiated Nitinol

被引：0

作者：

Yousaf, M. ^{[1
]}

Arif, M. A. ^{[1
]}

Ali, I. ^{[1
]}

Ahmad, S. ^{[1
]}

Mustafa, G. M. ^{[1
]}

Afzal, Naveed ^{[2
]}

Ghauri, I. M. ^{[1
]}

机构：

[1] Univ Punjab, Ctr Excellence Solid State Phys, Lahore, Pakistan

[2] Govt Coll Univ, Ctr Adv Studies Phys, Lahore, Pakistan

来源：

MATERIALS TODAY-PROCEEDINGS | 2015年 / 2卷 / 10期

关键词：

Shape memory alloys; Nitinol; Irradiation; Yielding; Fracture; INDUCED AMORPHIZATION; ALLOYS;

D O I：

10.1016/j.matpr.2015.11.102

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mechanical response of electron-beam irradiated NiTi alloy at room temperature is studied in the present case. NiTi alloy specimens in parent phase (austenitic phase) were exposed to 6, 9, 12, 15 and 18 MeV electron-beam at room temperature. Each specimen was irradiated for 10 min at dose rate of 300 cGy/min. The stress-strain curves of both un-irradiated and electron beam irradiated specimens indicate that the stress required to start martensitic transformation (sigma(MS)) decreases with increase in irradiation energy. The X-Ray diffractometer analysis shows a reduction in the crystallinity of the specimens with increase in the irradiation energy. The decrease in sMS and the observed changes in mechanical properties of irradiated nitinol may be ascribed to lattice disorder which leads to amorphization of the alloy caused by electron irradiation. (C) 2015 Elsevier Ltd. All rights

引用

页码：5622 / 5626

页数：5

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