Effect of post weld heat treatment on weldability of high entropy alloy welds
SCIE
SCOPUS
- Title
- Effect of post weld heat treatment on weldability of high entropy alloy welds
- Authors
- Nam, Hyunbin; Park, Chulho; Kim, Cheolhee; Kim, Hyoungseop; Kang, Namhyun
- Date Issued
- 2017-11
- Publisher
- TAYLOR & FRANCIS LTD
- Abstract
- The effect of post weld heat treatment (PWHT) temperature on laser beam welds in high-entropy alloys (HEAs) using a cold-rolled cantor system (CoCrFeMnNi) was investigated. Laser welding of low heat input was applied to reduce thermal distortion. The cold-rolled HEA welds indicated larger grain size and inferior tensile/hardness properties as compared to the base metal (BM). By applying PWHT, the welds showed superior hardness to the BM with no variation in the face-centred cubic phase and a decrease in the size and fraction of CrMn oxide inclusions. As the PWHT temperature increased (800-1000 degrees C), the variation in the grain size decreased between the weld metal and heat-affected zone, thus resulting in approximately the same tensile strength and elongation of the transverse welds as compared to the BM.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/96112
- DOI
- 10.1080/13621718.2017.1405564
- ISSN
- 1362-1718
- Article Type
- Article
- Citation
- SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, vol. 23, no. 5, page. 420 - 427, 2017-11
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.