Autor: |
Burnakov, K. K., Khasin, G. A., Danilov, V. F., Oshchepkov, B. V., Listkova, A. I. |
Zdroj: |
Metal Science and Heat Treatment; May 1979, Vol. 21 Issue: 5 p363-367, 5p |
Abstrakt: |
1.The presence of >103 per cm2 of fracture surface of large colonies consisting of lamellar inclusions and a large number of fine lamellar inclusions in the boundaries of crystals lowers the plasticity and facilitates the development of high-temperature brittleness of alloys KhN75MBTYu and KhN78T.2.Preliminary heating of alloy KhN75MBTYu with low plasticity at 750–1000° for 1–20 h does not remove high-temperature brittleness.3.Heating at temperatures above 1000° leads to partial solution and coalescence of pellicular inclusions, resulting in an increase of the fracture toughness at room temperature. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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