Enhancement of fracture toughness of high-strength Cr–Ni weld metals by strain-induced martensite transformation
| Autor: | Hai Qiu, Hong Zuo, L.N. Wang, J.G. Qi, Kazuo Hiraoka |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Austenite
Materials science Bainite Mechanical Engineering Metallurgy Crack tip opening displacement Welding Condensed Matter Physics law.invention Strain induced martensite Martensite transformation Fracture toughness Mechanics of Materials law Fracture (geology) General Materials Science Composite material |
| Zdroj: | Materials Science and Engineering: A. 579:71-76 |
| ISSN: | 0921-5093 |
| DOI: | 10.1016/j.msea.2013.05.012 |
| Popis: | The effect of strain-induced martensite transformation from retained austenite was investigated on the fracture toughness of Cr–Ni weld metal, in terms of crack tip opening displacement, within the range of room temperature to 77 K. Strain-induced martensite transformation has a positive impact on fracture toughness and can change fracture mode. This effect generally increases with an increase in the amount of retained austenite, but it is weak at 77 K. |
| Databáze: | OpenAIRE |
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