摘要
介绍了激光喷丸技术的工作原理;阐述了激光喷丸表面改性层微观组织的变化与残余压应力的形成机理和分布规律;分析了激光喷丸技术对提高金属抗应力腐蚀开裂性能的效果和机理;与机械喷丸进行比较,总结了激光喷丸技术提高金属抗应力腐蚀开裂性能的技术优势;并展望了激光喷丸技术在抗应力腐蚀方面的应用前景。
The working principle of laser shot peening was introduced. The change of microstructure, the forming mechanism and distribution of compressive residual stress in the surface modification layer were described. The effect and mechanism of laser shot peening on resistance of stress corrosion cracking were analyzed in detail. On the base of comparing with shot peening, the superiorities of laser shot peening in improving metal resistance of stress corrosion cracking were summarized. Finally its potential application was also presented.
出处
《激光技术》
CAS
CSCD
北大核心
2011年第1期39-42,共4页
Laser Technology
基金
江苏省高校自然科学基金资助项目(09KJB460002)
江苏技术师范学院基础及应用基础研究基金资助项目(KYY09015)
关键词
激光技术
激光喷丸
组织
残余压应力
应力腐蚀开裂
laser technique
laser shot peening
microstructure
compressive residual stress
stress corrosion cracking
