Mechanism of crack propagation in 1800 MPa class ultrahigh-strength steel by ultrafine-grained structure (Development of fracture control from microstructure design)
A 1800 MPa class steel bar with an ultrafine elongated grain (UFEG) structure was fabricated by multipass caliber rolling at 500°C. The static three-point bending test was conducted in a temperature range from 100°C to -196°C. The behaviors of crack propagation on the developed steel were studied on...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2015-09-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/81/830/81_15-00281/_pdf/-char/en |