Fatigue Properties of Nickel Titanium and their Improvement Using Low-Energy High-Current Electron Beams

被引：6
|
作者：
Meisner, S. N. [1 ]
Meisner, L. L. [1 ]
Neiman, A. A. [1 ]
Panin, S., V [1 ]
Vlasov, I. V. [1 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Inst Strength Phys & Mat Sci, Tomsk, Russia
来源：
RUSSIAN PHYSICS JOURNAL | 2021年 / 64卷 / 05期
关键词：
nickel titanium; low-energy high-current electron beam; surface layer structure; residual stresses; low-cycle fatigue under tension-tension cycling; TINI SMA; MEMORY; SURFACE; NITINOL; INCLUSIONS; BEHAVIOR; NI;
D O I：
10.1007/s11182-021-02399-y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
It is shown that by irradiating nickel titanium surfaces with a low-energy high-current electron beam of a microsecond duration at the energy densities of E-s = 1.5 and 3.7 J/cm(2) using n = 5 pulses it is possible to improve the fatigue characteristics of the material by nearly a factor of 1.5 due to surface cleaning from the particles/inclusions of Ti2Ni, TiC(O) and due to the presence in the TiNi surface layer of compressive residual stresses oriented perpendicular to the irradiated surface.
引用
收藏
页码：850 / 858
页数：9
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