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Neutron Radiation Influence Titanium Zirconium Molybdenum Alloy

Observing the titanium zirconium molybdenum (TZM) alloy microstructure found alloy after neutron radiation forming a large number of point defects inside of body, which makes the material in deformation will generate stress and these stress are greater than the alloy’s internal breaking stress, making TZM alloy radiation hardening occurs more sensitive to brittle fracture, so that the ductility is reduced.
Observing TZM alloy performance changes when it doing neutron radiation at 294℃. When tested at room temperature, the tensile strength of the alloy TZM improved but the elongation is almost zero. When the test temperature is raised to 600 ℃, the tensile strength reaches maximum value, but still no elongation of the alloy. Until the test temperature up to 800 ℃, alloy it has a certain elongation. This is because after 294 ℃ radiation, alloy body form a large number of small pores and dislocation loops, they played a stable barrier effect of dislocation teleport, so the tensile strength of alloy is significantly improved than alloy which is without radiation, but deteriorate alloy’s extendsibility.
TZM alloys after neutron irradiation, tensile property has been significantly improved, but the ductility decreased very large, while increase in hardness.

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