Elimination of μ phase and improvement of hot corrosion resistance of a nickel-base superalloy by laserglazing
- 1 February 1985
- journal article
- research article
- Published by Taylor & Francis in High Temperature Technology
- Vol. 3 (1) , 29-33
- https://doi.org/10.1080/02619180.1985.11753276
Abstract
Laser irradiation of a wrought nickel-base superalloy with high tungsten and molybdenum contents can eliminate acicular μ. phase, which has a tendency to precipitate out in the matrix or beneath the aluminized layer after prolonged exposure to high temperature. It is shown that laserglazing refines the microstructure and homogenizes the composition distribution, markedly improving the hot corrosion resistance.Keywords
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