错位散斑技术在钛合金SPF/DB结构检测中的应用初探  

Research on Application of Shearography in SPF/DB Structure of Titanium Alloy

作　　者：赵林博[1] 雷鹍[1] 宋鹏[1] 许沂[1] 刘新芹[1] 

机构地区：[1]航天特种材料及工艺技术研究所

出　　处：《航空制造技术》2011年第16期69-71,共3页Aeronautical Manufacturing Technology

基　　金：航天三院创新基金项目(20H1103)资助

摘　　要：分析了钛合金SPF/DB结构缺陷及形成原因,介绍了错位散斑技术的基本原理,通过采用错位散斑技术对钛合金SPF/DB结构进行检测试验,能够发现明显的缺陷特征,从检测敏感度、效率等方面与X射线、超声C进行对比,结果表明,错位散斑技术能够应用于钛合金SPF/DB的结构检测,但仍需在检测精度、可靠性等方面进行深入研究。The defect and reason in superplastic forming and diffusion bonding on titanium alloy are analyed. The basic principle of shearography is introduced. By using the shearography on SPF/DB of titanium alloy, some obvious characteristics of the defect are obtained. Shearography technique is compared with X-ray and ultrasonic on sensitivity, reliability, and so on. Shearography is proved to be an effective technique on SPF/DB of titanium alloy ,but the precision and reliability of the technique should be studied deeply in the future.

关 键 词：错位散斑 SPD/DB 钛合金 无损检测 

分 类 号：TG115.28[金属学及工艺—物理冶金]