Welding Characteristic Evaluation of GMAW and Laser Cladding for the Gas Turbine 1st Blade
The advancement in superalloys permits the hot gas path components to operate for thousands of hours under severe centrifugal, thermal and vibratory stresses. The blade of a gas turbine must withstand the most severe condition combined of temperature, stress, and environment. After a long operation, the damaged blades of a gas turbine used are welded for build-up and repaired. We analyzed and compared the mechanical properties of GMAW(Gas Metal Arc Welding), a manual welding method, a laser cladding method, and an automatic welding method under research and development.
Yu Zhou, Shan-Tung Tu and Xishan Xie
H. I. Kim et al., "Welding Characteristic Evaluation of GMAW and Laser Cladding for the Gas Turbine 1st Blade", Key Engineering Materials, Vols. 353-358, pp. 519-522, 2007