Laser processing and gas tungsten arc welding are the processes commonly used for turbine repair.  However, these processes can cause a range of metallurgical issues in the repaired component, including microcracking in the heat-affected zone and local loss of properties. Electro-spark deposition is a process that occurs at rapid cooling rates, mitigating a number of … Continue reading Critical Factors Affecting the Quality of Electro-spark Deposits on Nickel-base Superalloys