Cleavage delamination in impact tested warm-rolled steel
Abstract
Cleavage delaminations or separations have been observed on fracture surfaces of impact specimens made from rolled steel pipe and plate products. These delaminations appear as cleavage cracks lying parallel to the plane of rolling. Depending primarily on the test temperature and extent of rolling, four fracture modes have been reported: ductile, transgranular, ductile with cleavage delaminations, and transgranular with cleavage delaminations. A model is proposed which accounts semiquantitatively for rolling plane weakening with respect to test temperature, rolling strain, and rolling temperature. The four observed fracture modes and the manner of transition from one to another are delineated by the model.
- Publication:
-
Metallurgical Transactions A
- Pub Date:
- December 1983
- DOI:
- 10.1007/BF02668890
- Bibcode:
- 1983MTA....14.2487B
- Keywords:
-
- Metallurgical Transaction;
- Test Temperature;
- Ductile Fracture;
- Rolling Plane;
- DBTT