16 January 1988 Microstructure And Oxidation Properties Of Laser Clad Ni70AL20Cr7Hf3 Alloys With Extended Solid Solution Of Hf
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Proceedings Volume 0952, Laser Technologies in Industry; (1988) https://doi.org/10.1117/12.968899
Event: Laser Technologies in Industry, 1988, Porto, Portugal
Abstract
Alloys coatings for superalloys for improved higher temperature (1200°C) service life under aggressive atmospheres are of great interest at present. There is a general consensus that addition of rare earths such as hafnium (Hf) to these alloys has a pronounced effect on the oxidation resistance properties at high temperatures. In situ laser cladding technique was used to produce Ni-Al-Cr-Hf alloys with extended solid solution of Hf in a near stoichiometric Ni3Al matrix. A 10 kW CW CO2 laser was used in conjunction with a screw-feed powder dispenser to perform the in situ cladding process.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Mazumder, S. Sircar, C. Ribaudo, A, Kar, "Microstructure And Oxidation Properties Of Laser Clad Ni70AL20Cr7Hf3 Alloys With Extended Solid Solution Of Hf", Proc. SPIE 0952, Laser Technologies in Industry, (16 January 1988); doi: 10.1117/12.968899; https://doi.org/10.1117/12.968899
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