TY - GEN
T1 - Laser beam welding of Haynes 188
AU - Odabaşi, Akin
AU - Ünlü, Necip
AU - Göller, Gültekin
AU - Eruslu, Niyazi
PY - 2010
Y1 - 2010
N2 - HAYNES 188 (HN188)* is a commonly used Co-Ni-Cr-W superalloy since 1960s (*HAYNES is a registered trademark of Haynes International, Kokomo, IN, USA). Because of its excellent high temperature strength, good resistance to hot corrosion, and wear resistance, HN-188 has found extensive applications such as afterburner components and combustors. Even the alloy has been investigated previously, new industrial processes such as laser beam applications i.e., laser beam welding, and laser powder deposition, increase the demand on theoretical and experimental knowledge. In this research, laser beam welding characteristics of HN-188 superalloy (2.1 mm thick) were investigated. Two different heat inputs (61.3 J/mm and 90.1 J/mm) and travel speeds (46.5 mmls and 22.2 mm/s) were applied. The base metal (BM), fusion zone (FZ), heat affected zone (HAZ) and the geometry of weld seams were characterized using optical microscopy (OM) and scanning electron microscopy (SEM).
AB - HAYNES 188 (HN188)* is a commonly used Co-Ni-Cr-W superalloy since 1960s (*HAYNES is a registered trademark of Haynes International, Kokomo, IN, USA). Because of its excellent high temperature strength, good resistance to hot corrosion, and wear resistance, HN-188 has found extensive applications such as afterburner components and combustors. Even the alloy has been investigated previously, new industrial processes such as laser beam applications i.e., laser beam welding, and laser powder deposition, increase the demand on theoretical and experimental knowledge. In this research, laser beam welding characteristics of HN-188 superalloy (2.1 mm thick) were investigated. Two different heat inputs (61.3 J/mm and 90.1 J/mm) and travel speeds (46.5 mmls and 22.2 mm/s) were applied. The base metal (BM), fusion zone (FZ), heat affected zone (HAZ) and the geometry of weld seams were characterized using optical microscopy (OM) and scanning electron microscopy (SEM).
KW - Haynes 188
KW - Laser welding
KW - Solidification rate
UR - http://www.scopus.com/inward/record.url?scp=77952347764&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77952347764
SN - 9780873397537
T3 - TMS Annual Meeting
SP - 649
EP - 656
BT - TMS 2010 - 139th Annual Meeting and Exhibition - Supplemental Proceedings
T2 - TMS 2010 - 139th Annual Meeting and Exhibition
Y2 - 14 February 2010 through 18 February 2010
ER -
