Effect of Recrystallization on Environmental Embrittlement of a Ni3Al(Zr) Alloy
再结晶Ni3Al(Zr)合金的环境脆性

The effects of recrystallization on room temperature tensile properties and susceptibility to test environments (air or vacuum) of a Ni_3Al(Zr) alloy have been investigated. The results show that the index of susceptibility to test environment increases with increase of recrystallized degree. It is found that air reduces the fraction of ductile fracture for completely recrystallized specimens. For the partially recrystallized microstructures, the ductile fracture mode remains unchanged when test environment changed from vacuum to air. The reason has been discussed in this paper.