Coating Degradation in Hot Press Forming
SCIE
SCOPUS
- Title
- Coating Degradation in Hot Press Forming
- Authors
- Fan, DW; Kim, HS; Oh, JK; Chin, KG; De Cooman, BC
- Date Issued
- 2010-01
- Publisher
- IRON STEEL INST JAPAN KEIDANREN KAIKAN
- Abstract
- The thermo-mechanically induced microstructure changes occurring in a type 1 aluminized coating on hot press forming (HPF) steel were studied in detail. The formation of intermetallic phases at the soaking temperature prior to die quenching revealed that the coating matrix consists mainly of FeAl(2) intermetallic phase by the time the press forming carried out. Kirkendall void formation was observed to take place. The thermal oxidation of aluminized coating during HPF was found to be limited, with the coating acting as an effective barrier for the oxygen during heating. The deterioration caused by the high temperature plastic deformation was shown to lead to coating cracking without loss of adhesion. The steel surface was oxidized where it was exposed between the coating segments.
- Keywords
- hot press forming; aluminized; intermetallic; diffusion; Kirkendall voids; AL; STEEL; FE; SI
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/25317
- DOI
- 10.2355/isijinternational.50.561
- ISSN
- 0915-1559
- Article Type
- Article
- Citation
- ISIJ INTERNATIONAL, vol. 50, no. 4, page. 561 - 568, 2010-01
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- There are no files associated with this item.
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