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Analysis on Bone-jointed Plate Cracking
Pages: 62-64
Year: Issue:  4
Journal: Heat Treatment

Keyword:  surgical implantsstainless steelbone-jointed platefix screwbending fatigue cracking;
Abstract: Cause of bone-jointed plate cracking was analyzed by means of macro-examination, chemical composition analysis and metallographic examination.The results show that fix screw for the bone-jointed plate deforms in service due to excessively low strength,thus resulting in both the screw-fastening hole becoming less close and the bone-jointed plate early cracking under the action of a transverse bending stress exceeding the fatigue limit of the material.The bone-jointed plate cracking may be appreciably restrained or avoided through improving manufacturing process of the fix screw and thus increasing its strength.
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