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

页码：850 / 858

页数：9

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