| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1580266 | Materials Science and Engineering: A | 2009 | 4 Pages |
Abstract
Dual phase (DP) steels with network and fibrous martensite were produced by intercritical annealing heat treatment cycles. Some of these steels were deformed at dynamic strain aging temperatures. Room temperature tensile tests of specimens deformed at 300 °C showed that both yield and ultimate tensile strengths for both morphologies increased, while total elongation decreased. Fatigue test results before and after high temperature deformation showed that dynamic strain aging has a stronger effect on fatigue properties of dual phase steels with fibrous martensite. Cracks in DP steels with fibrous martensite propagate in a tortuous path in soft ferrite phase, while they pass of both hard and soft phases in DP steels with network martensite.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
M.J. Molaei, A. Ekrami,