| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1498011 | Scripta Materialia | 2016 | 5 Pages |
Abstract
Fusion zone microstructures of fiber laser welded Al-Si coated press-hardened steels at pre- and post-press-hardened conditions were analyzed using transmission electron microscopy (TEM). TEM and nanoindentation studies suggest that dislocation-free δ-ferrite phase formed in the weld metal (by ingress of the Al-Si surface coating into the fusion zone) exhibits lower nanohardness compared to α-ferrite transformed after press hardening. The nanoscale properties of δ-ferrite, α-ferrite, and martensite and their crystallographic orientation relationships are reported.
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Dulal Chandra Saha, Elliot Biro, Adrian P. Gerlich, Norman Y. Zhou,