Heat affected zone microfissuring in a laser beam welded directionally solidified Ni3Al-base alloy |
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| Authors: | OA Ojo RG Ding MC Chaturvedi |
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| Affiliation: | Department of Mechanical and Manufacturing Engineering, University of Manitoba, Winnipeg, Manitoba, Canada R3T 5V6 |
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| Abstract: | The laser beam weld heat affected zone (HAZ) microstructure of a newly developed aerospace alloy, IC 6, was examined. HAZ microfissuring was observed and found to be associated with grain boundary liquation facilitated by subsolidus eutectic-type transformation of the alloy’s major phase, γ′ precipitates, and interfacial melting of M6C-type carbide and (Mo2Ni)B2-type boride particles. |
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| Keywords: | Alloy IC 6 Welding HAZ Cracking |
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