Ti-24Nb-4Zr-8Sn合金疲劳缺口敏感性

中国有色金属学报, 2010, 20(z1): 518-522.

Ti-24Nb-4Zr-8Sn合金疲劳缺口敏感性

张思倩 ^1, , 李述军 ^2, , 郝玉琳 ^3, , 杨锐 ^4,

1.中国科学院,金属研究所,沈阳材料科学国家,联合,实验室,沈阳,110016

2.中国科学院,金属研究所,沈阳材料科学国家,联合,实验室,沈阳,110016

3.中国科学院,金属研究所,沈阳材料科学国家,联合,实验室,沈阳,110016

4.中国科学院,金属研究所,沈阳材料科学国家,联合,实验室,沈阳,110016

基金项目: 辽宁省自然科学基金资助项目(20092075) 国家自然科学基金资助项目(50631030;50901080)

关键词：钛合金 , 缺口 , 疲劳缺口敏感性

Fatigue notch sensitivity of Ti-24Nb-4Zr-8Sn alloy

研究不同缺口半径和应力比对Ti-24Nb-4Zr-8Sn合金室温高周疲劳性能的影响.结果表明:缺口的存在明显降低合金的疲劳强度,缺口半径和应力比的变化对合金的组织及缺口敏感性影响不大,仅疲劳强度稍有变化.与其他类型常用钛合金相比较,Ti-24Nb-4Zr-8Sn合金具有低的室温疲劳缺口敏感性,这主要归因于其良好的室温塑性以及超弹性变形特点.

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材料期刊网

Ti-24Nb-4Zr-8Sn合金疲劳缺口敏感性

Fatigue notch sensitivity of Ti-24Nb-4Zr-8Sn alloy

参考文献