Heat affected zone microfissuring in a laser beam welded directionally solidified Ni3Al-base alloy
作者： O.A. Ojo , R.G. Ding , M.C. Chaturvedi
DOI: 10.1016/J.SCRIPTAMAT.2006.02.044
关键词:
摘要: Abstract The laser beam weld heat affected zone (HAZ) microstructure of a newly developed aerospace alloy, IC 6, was examined. HAZ microfissuring observed and found to be associated with grain boundary liquation facilitated by subsolidus eutectic-type transformation the alloy’s major phase, γ′ precipitates, interfacial melting M6C-type carbide (Mo2Ni)B2-type boride particles.
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