| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8025853 | Surface and Coatings Technology | 2015 | 9 Pages |
Abstract
The surface alloying of 55Â wt.% Al-Zn coated press hardening steel during a press hardening heat treatment was evaluated. Austenitization resulted in the formation of a surface layer containing FeAl and Fe2Al5. The use of an increased heating rate during the austenitization cycle resulted in a high volume fraction of Zn at FeAl grain boundaries, and the presence of Zn islands in Fe2Al5 grains. These microstructural features suppressed the high temperature oxidation and evaporation of Zn. Zn was found to provide a pronounced cathodic protection, and the alloyed coating did not cause liquid metal induced embrittlement.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Chang Wook Lee, Won Seok Choi, Yeol Rae Cho, Bruno C. De Cooman,