动脉瘤夹的腐蚀：评估及临床意义。第1部分：应力腐蚀失效的冶金学基础。

Corrosion of aneurysm clips: evaluation and clinical implications. Part 1: Metallurgical foundations of stress corrosion failure.

作者信息

Kossowsky R, Dujovny M, Kossovsky N, Diaz F G, Ausman J I

出版信息

Acta Neurochir (Wien). 1984;72(1-2):31-43. doi: 10.1007/BF01406812.

Abstract

Several intracranial failures of aneurysm clips have been documented recently. Consistently, the mechanism of failure has been stress corrosion. These failures could have been anticipated if certain metallurgical properties of the clips had been known. In this paper, we review the metallurgical basis of stress corrosion failure and offer serial metallurgical tests as screening procedures to determine a clip's propensity towards failure. The importance of determining a clip's fracture toughness, a key indicator of stress corrosion resistance, is emphasized.

摘要

最近已有多起颅内动脉瘤夹失效的记录。一直以来，失效机制都是应力腐蚀。如果了解夹子的某些冶金特性，这些失效本可预见。在本文中，我们回顾了应力腐蚀失效的冶金学基础，并提供系列冶金测试作为筛选程序，以确定夹子发生失效的倾向。文中强调了确定夹子断裂韧性的重要性，断裂韧性是抗应力腐蚀的关键指标。