TZM Alloy High Temperature Creep Properties
- Details
- Category: Molybdenum knowledge
- Published on 07 April 2015
- Written by limei
- Hits: 501
At the same temperature and load conditions, ordinary rolling variegate molybdenum alloy sheet bending value is larger, while high-temperature recrystallization TZM alloy sheet material smaller values of maximum bending, showing excellent anti-bending performance, and the test temperature the higher the resistance to bending the worse the performance.
So far, some scholars have conducted related research of TZM high-temperature creep properties. German Professional Institute in cooperation with the Austrian company, a metal of pure molybdenum and TZM alloy powder metallurgy production process were studied temperature creep behavior and microstructure, the study found: compressive strain in the direction towards the development of creep start But when the time reaches 2% -10% of the fatigue life, creep strain direction of steering pull until the specimen breaks. Creep rate from the beginning, has been increasing state. This is mainly because of cyclic creep performance and stress intensity and temperature dependent. With the increasing range of cyclic stress, cyclic creep more serious; but at the same cyclic stress range effect of temperature on cyclic creep increases as the temperature increases, the more obvious cyclic creep.
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