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Hastelloy X is a corrosion and heat resistance solution hardened nickel base super alloy. This alloy having an austenitic microstructure and in this regard is expected to be prone to hot cracking in fusion welding. In this research a 400W Nd:YAG pulsed laser and 600W continuous wave fiber laser welding are employed to weld a 2mm thick Hastelloy X plates. Comparison is made with regard to weld penetration...
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