Heat Input Dependence of Weld HAZ Cracking in Aerospace Superalloy Haynes 282

Simple item page
dc.contributor.authorOsoba, L.O.
dc.contributor.authorGao, Z.
dc.contributor.authorOjo, O.A.
dc.date.accessioned2020-03-28T17:13:20Z
dc.date.available2020-03-28T17:13:20Z
dc.date.issued2012
dc.description.abstractA study of weld heat affected zone (HAZ) cracking and its dependence on heat input during laser beam welding of a newly developed γ’ precipitation strengthened nickel-base superalloy Haynes 282 (HY 282) was carried out. Careful and detailed microstructural study of the nature of HAZ cracking in the alloy showed that the cracking is attributable to degradation of hot ductility of the alloy due to formation of liquid film along grain boundaries. An increase in the magnitude of laser heat input resulted in a considerable reduction in the HAZ cracking. The cracking variation with heat input is discussed in relation to the time that the subsolidus HAZ region spent at peak temperatures. The behavior is also discussed with the results of numerical simulation, which show that reduction in the magnitude of thermally induced strain rate gradient may contribute to reduced HAZ cracking that occurred with an increase in heat input.en_US
dc.identifier.citationOsoba, L.O. Gao, Z. Ojo, O.A. (2012). Heat Input Dependence of Weld HAZ Cracking in Aerospace Superalloy Haynes 282. Proceedings of The Canadian Society for Mechanical Engineering International Congress; Winnipeg, Manitoba, Canada; June 4-6.en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/8221
dc.language.isoenen_US
dc.publisherThe Canadian Society for Mechanical Engineering International Congressen_US
dc.subjectJoining; Laser Welding; Ni based superalloyen_US
dc.titleHeat Input Dependence of Weld HAZ Cracking in Aerospace Superalloy Haynes 282en_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Heat Input Dependence of Weld HAZ Cracking in Aerospace Superalloy Haynes 282.pdf
Size:
428.31 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Metallurgical and Materials Engineering- Conference Papers