Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7971678 | Materials Science and Engineering: A | 2018 | 16 Pages |
Abstract
The zinc coating layer fracture properties of a galvannealed steel and an electrolytically galvanized steel are analyzed by conducting the in-situ bending test with newly designed samples. It is found that the fracture develops much earlier in the coating layers of the galvannealed steel than that of the electrolytically galvanized steel. Using transmission electron microscope and energy dispersive X-ray spectroscopy, the intermetallic phases of the coating layers are characterized and it is found that the early crack initiation in a galvannealed steel is mainly triggered in the gamma phase. Combining with nanoindentation tests and corresponding simulation, the deformability of intermetallic phases are analyzed to explain the failure behavior of coating layers in the two steels.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Jinshan He, Junhe Lian, Anke Aretz, Napat Vajragupta, Ude Hangen, Frank Goodwin, Sebastian Münstermann,