Effect of heat treatment on the plasticity of nickel alloys

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