Neutron Radiation Temperature Influence Titanium Zirconium Molybdenum Alloys
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- Category: Molybdenum knowledge
- Published on 06 August 2015
- Written by yiping
- Hits: 353
Neutron radiation is an important way to change the titanium zirconium molybdenum (TZM) alloys ductile-brittle transition temperature (DBTT) and mechanical properties. Because TZM alloy after neutron irradiation will form a lot of point defects, namely dislocation loops and voids. These defects will cause stress which is higher than alloy internal fracture stress when alloy in the deformation.
On the other hand, TZM alloy during neutron radiation treatment, the radiation temperature have a significant impact on the DBTT and tensile strength of the alloy. Researchers study the 294℃~1100℃ neutron radiation found in the neutron irradiation at 294℃, the tensile strength of the alloy has increased, but only up to 800℃ has a certain elongation. Radiation at 300℃, alloy DBTT increases from -50 ℃ to 800 ℃ before radiation after radiation, while the tensile strength has improved a lot. Radiation at 600 ℃, the tensile strength also increased, but DBTT after radiation was 700 ℃. When radiation at 935~1100℃, the alloy radiation hardening, DBTT after radiation was -50 ℃.
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