PLASTIC DEFORMATION OF HIGH MELTING METALS AT ELEVATED TEMPERATURES (in Russian)
Journal Article
·
· Izvest. Akad. Nauk S.S.S.R., Otdel. Tekh. Nauk Met. i Toplivo
OSTI ID:4092085
The creep of titanium, niobium, and chromium was studied at various temperatures. It was found that with the increase of applied force the creep activation energy is reduced in chromium and niobium, whereas in titanium it remains unchanged. The Q/sub c/ep>i of titanium (absolute value) is less than the self-diffusion activating energy. The creep activation energy for chromium and niobium at T = o is a complex magnitude that in first approximation is equal to the sum of self-diffusion activation energy and the vacancy forming energy. Microscopic analysis exhibits a dislocation mechanism in chromium plastic deformation at high temperatures (1400 deg C). The polygonization process is analyzed, and it is shown that polygorization appears at the beginning of the second stage of creep. (R.V.J.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-005397
- OSTI ID:
- 4092085
- Journal Information:
- Izvest. Akad. Nauk S.S.S.R., Otdel. Tekh. Nauk Met. i Toplivo, Journal Name: Izvest. Akad. Nauk S.S.S.R., Otdel. Tekh. Nauk Met. i Toplivo Vol. Vol: No. 5
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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