Influence of cold work on the Ductile-Brittle transition behavior of ferrous alloys
โ Scribed by H.J Rack
- Publisher
- Elsevier Science
- Year
- 1972
- Weight
- 817 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0025-5416
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The ductile-brittle transition temperature for bend specimens of recrystallized powder metallurgy molybdenum has been shown to be lowered from 50ยฐC to 2ยฐC by the application of a hydrostatic pressure of -20,000 psi (~1.4 kbar). The pressure medium was kerosene. The samples were obtained from 0.020
A fracture criterion is formulated which states that strain localization occurs if the energy to deform the material by unit strain starts to decrease. The model takes into account the work hardening rate of the matrix and the softening effect due to void growth. A model for void growth during tens