| 残余应力对表面纳米化316L不锈钢疲劳性能影响 |
| |
| 引用本文： | 石东艳,龙建旭,车正伟. 残余应力对表面纳米化316L不锈钢疲劳性能影响[J]. 广西大学学报(自然科学版), 2009, 34(2) |
| |
| 作者姓名： | 石东艳 龙建旭 车正伟 |
| |
| 作者单位： | 贵州大学,土木建筑工程学院,贵州,贵阳,550001;贵州交通职业技术学院,建工系,贵州,贵阳,550008 |
| |
| 基金项目： | 贵州省优秀科技教育人才省长专项资金资助项目,贵州大学自然科学青年科研基金 |
| |
| 摘 要： | 超声喷丸处理工艺在316L不锈钢表面制备出了纳米表面晶层,对表面纳米化后和未表面纳米化的316L不锈钢试样进行拉拉低周疲劳试验,然后对试件进行表面残余应力进行测试,并对表面纳米化后材料疲劳性能的影响机理进行了初步分析探讨.研究结果表明,超声喷丸表面纳米化处理可以有效使材料在表面产生残余压应力,并使得表面晶粒细化,从而有效抑制疲劳裂缝萌生,提高材料疲劳寿命.
|
| 关 键 词： | 316L不锈钢 表面纳米化 残余应力 |
Effecton residual stress on surface of nano-316 L stainless steel fatigue performance |
| |
| SHI Dong-yan,LONG Jian-xu,CHE Zheng-wei. Effecton residual stress on surface of nano-316 L stainless steel fatigue performance[J]. Journal of Guangxi University(Natural Science Edition), 2009, 34(2) |
| |
| Authors: | SHI Dong-yan LONG Jian-xu CHE Zheng-wei |
| |
| Affiliation: | 1.College of Civil and Architectural Engineering;Guizhou University;Guiyang 550001;China;2.Guizhou Communication Polytechnic;Guiyang 550003;China |
| |
| Abstract: | By means of ultrasonic shot peening treatment,a nanostructured surface layer was formed on 316L stainless steel.Tension-tension fatigue tests were carried out before and after USSP treatment.And then on the specimen surface residual stress test.The results show that the surface of nano-ultrasonic shot peening treatment can be so effective that the material in the surface residual compressive stress,makes the surface of grain refinement effectively controls the fatigue crack initiation,and increases material... |
| |
| Keywords: | 316L stainless steel surface nanocrystallization residual stress |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
