| 生理盐水浸泡对Ti-6Al-4V钛合金超高周疲劳性能的影响 |
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| 引用本文： | 曹小建,王清远,陈国平,窦秋芳,宋之敏,王弘. 生理盐水浸泡对Ti-6Al-4V钛合金超高周疲劳性能的影响[J]. 西南科技大学学报, 2007, 22(2): 5-8 |
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| 作者姓名： | 曹小建 王清远 陈国平 窦秋芳 宋之敏 王弘 |
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| 作者单位： | 1. 四川大学建筑与环境学院,四川成都,610065
2. 西南科技大学土木工程与建筑学院,四川绵阳,621010 |
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| 基金项目： | 四川省杰出青年基金资助(06ZQ026-004) |
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| 摘 要： | 钛和钛合金可作为医用植入材料,有必要对其耐人体体液的侵蚀性能进行研究。用超声疲劳试验技术研究了室温下生理盐水中浸泡24 h后Ti-6A l-4V钛合金(TC4)的超高周疲劳性能,并与未经浸泡的同种材料的超声疲劳性能进行了对比分析。疲劳试验进行到109循环周次以上。结果显示,实验材料的S-N曲线均呈现缓慢下降趋势,材料不存在常规疲劳中的疲劳极限,经生理盐水浸泡24 h后对实验材料的超高周疲劳寿命无明显影响。用电子扫描电镜观测,实验材料表现为穿晶塑性断裂。
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| 关 键 词： | 钛合金 超声疲劳 S-N曲线 |
| 文章编号： | 1671-8755（2007）02-0005-04 |
| 修稿时间： | 2006-12-19 |
Influence of Subjection to Physiological Saline Solution on Gigacycle Fatigue Properties of TC4 |
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| CAO Xiao-jian,WANG Qing-yuan,CHEN Guo-ping,DOU Qiu-fang,SONG Zhi-min,WANG Hong. Influence of Subjection to Physiological Saline Solution on Gigacycle Fatigue Properties of TC4[J]. Journal of Southwest University of Science and Technology, 2007, 22(2): 5-8 |
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| Authors: | CAO Xiao-jian WANG Qing-yuan CHEN Guo-ping DOU Qiu-fang SONG Zhi-min WANG Hong |
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| Affiliation: | 1. College of Architecture and Environment, Sichuan University, Chengdu 610065, Sichuan, China ; 2. School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China |
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| Abstract: | Titanium and Titanium alloy can be used as medical implants and its corrision resistance to human body fluid should be studied.The ultrasonic fatigue test method has been used to investigate the gigacycle fatigue properties of commercial titanium alloy TC4 dipped into physiological saline solution for 24 h prior to testing.The results show that the physiological saline solution treatment hardly influences the ultrasonic fatigue life of TC4.The fractography pictures indicate the fracture to be transcrystalline plastic. |
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| Keywords: | titanium alloy ultrasonic fatigue S-N curve |
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