激光加工技术在汽轮机叶片制造中的应用  

Application of Laser Processing Technologies on Turbine Blades

作　　者：姚建华[1] 叶钟[2] 沈红卫 

机构地区：[1]浙江工业大学激光加工技术工程研究中心,浙江杭州310014 [2]杭州汽轮机股份有限公司,浙江杭州310022 [3]上海电气电站设备有限公司,上海200240

出　　处：《激光与光电子学进展》2012年第3期104-109,共6页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(50971117)资助课题

摘　　要：选择不同的激光加工技术,如激光合金化、激光修复和激光固溶技术,实现了2Cr13和17-4PH两种常见叶片的强化与修复。对强化和修复前后汽轮机叶片的显微结构、硬度、残余应力、耐磨性、抗腐蚀、抗气蚀性能进行了测试分析。证明激光加工技术在汽轮机叶片的强化和修复方面具有良好的应用前景。With different laser processing technologies such as laser alloying, laser repairing and laser solid solution strengthening, two kinds of steam turbine blades with 2Cr13 and 17-4PH are hardened and repaired. Before and after hardening or remanufacturing, the microstructures, microhardness, residual stress, wear resistance, anti-corrosion and anti-cavitations properties are measured. The results confirm that laser processing technologies could be applied to strengthen and tanrer turhino hlades.

关 键 词：激光技术 汽轮机叶片 激光合金化 激光修复 激光固溶 抗气蚀 

分 类 号：TN29[电子电信—物理电子学]