Internal friction of α-iron deformed at low temperatures
✍ Scribed by Munekatsu Shimada; Koshiro Sakamoto
- Book ID
- 116060166
- Publisher
- Elsevier Science
- Year
- 1979
- Weight
- 329 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0036-9748
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📜 SIMILAR VOLUMES
Internal frictions of several polycrystalline copper wires of various purities deformed at liquid nitrogen temperature and at room temperature were measured as a function of temperature between -190°C and + 20°C at about 1 c/s. There are three relaxation peaks in this temperature region and detailed
friction peak has been found in iron at about lOOoK, and possibly in molybdenum at about 300°K. These internal friction peaks occur at temperatures corresponding to the ductile to brittle transition of these materials in slow tension tests. The possible role of hydrogen in causing the 100°K peak in