Optimisation of processing and properties of medical grade Nitinol wire

被引：213

作者：

Pelton, AR ^{[1
]}

DiCello, J ^{[1
]}

Miyazaki, S ^{[1
]}

机构：

[1] Cordis Corp Nitinol Devices & Components, Fremont, CA 94539 USA

来源：

MINIMALLY INVASIVE THERAPY & ALLIED TECHNOLOGIES | 2000年 / 9卷 / 02期

关键词：

Nitinol; shape-memory; superelasticity; mechanical properties; ageing; fatigue;

D O I：

10.3109/13645700009063057

中图分类号：

R61 [外科手术学];

学科分类号：

摘要：

The purpose of this paper is to review the current processing and resultant properties of standard Nitinol wire for guide-wire applications. Optimised Ti-50.8at%Ni wire was manufactured according to industry standards by precise control of the composition, cold work and continuous strain-age annealing. Mechanical properties of this wire are reported from -100 degrees C to 200 degrees C to demonstrate the effects of test temperature. Within the 'superelastic window' the plateau stresses are linearly related to test temperature. Additional ageing treatments can be used as a tool to fine-tune transformation temperatures and mechanical properties. A review of the fatigue properties of thermomechanically-treated Nitinol wire shows that they are affected by test temperature, stress and strain.

引用

页码：107 / 118

页数：12

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