Brittle-to-ductile transition in the fracture of steels hardened by thermomechanical treatment
β Scribed by O. N. Romaniv; Yu. V. Zima; N. L. Kuklyak; M. A. Kutsyn
- Publisher
- Springer
- Year
- 1972
- Tongue
- English
- Weight
- 837 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1573-885X
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The statistical scatter of fracture toughness in the ductile-brittle transition temperature range was experimentally examined on a 500 MPa class low carbon steel. Fracture toughness tests were replicatedly performed at Γ60 Β°C, Γ20 Β°C and Γ10 Β°C. The tests at Γ60 Β°C resulted in a single modal Weibull
When fracture toughness testing is carded out over the ductile to brittle transition temperature region cleavage instability may be observed at the initiation of cracking or after some prior ductile crack growth. The amount of precleavage ductile crack growth increases with increasing temperature. A