| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1498313 | Scripta Materialia | 2015 | 4 Pages |
Abstract
Multiple pop-in events which indicate a gradual transformation from a metastable austenite grain to martensites in steel were detected during nanoindentation. It was observed by means of an automotive mapping technique with TEM that the partial volume of prior austenite had transformed into several martensite blocks with different variants. From a finite element calculation combined with phenomenological approach for martensitic transformation, it was confirmed that each variant corresponded to those for which the transformation strain effectively accommodates external stress.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Yanghoo Kim, Tae-Hong Ahn, Dong-Woo Suh, Heung Nam Han,