Cahoon J R, Holte R N
J Biomed Mater Res. 1981 Mar;15(2):137-45. doi: 10.1002/jbm.820150203.
Fatigue tests conducted both in air and synthetic physiological solution show that the fatigue strength of surgical stainless steel in synthetic physiological solution is about 10% lower than the strength in air for a given endurance level. It is proposed that surgical stainless steel which is normally passive in physiological solution suffers corrosion fatigue because of susceptibility to crevice corrosion which occurs at extrusions and intrusions (crevices) on the surface thereby shortening the crack initiation time and the fatigue life.
在空气和合成生理溶液中进行的疲劳试验表明,对于给定的耐力水平,外科不锈钢在合成生理溶液中的疲劳强度比在空气中的强度低约10%。有人提出,在生理溶液中通常呈钝态的外科不锈钢会遭受腐蚀疲劳,因为它易受表面挤压和侵入(缝隙)处发生的缝隙腐蚀影响,从而缩短裂纹萌生时间和疲劳寿命。