Fatigue cracking behavior was studied on compact tension specimens of Ni3Al alloy single crystals having [110] tensile axis. Crystallographic cracking in the (110)[1(1) over bar0$] oriented specimen occurred on alternating {111} planes, and the whole fracture was almost parallel to the loading axis. The preferentially activated slip systems ahead of the growing crack tip and their interaction with each other resulted in the fracture characteristics in that oriented specimen. The experimental findings could be well explained by calculating the shear stresses on all possible octahedral slip planes around the growing crack tip.
部门归属
zhang, gp (reprint author), acad sinica,inst met res,state key lab fatigue & fracture mat,shenyang 110015,peoples r china
G. P. Zhang,Z. G. Wang. Crystallographic cracking behavior in (110) oriented Ni3Al alloy single crystals under cyclic loading[J]. Materials Letters,1997,30(2-3):175-181.
APA
G. P. Zhang,&Z. G. Wang.(1997).Crystallographic cracking behavior in (110) oriented Ni3Al alloy single crystals under cyclic loading.Materials Letters,30(2-3),175-181.
MLA
G. P. Zhang,et al."Crystallographic cracking behavior in (110) oriented Ni3Al alloy single crystals under cyclic loading".Materials Letters 30.2-3(1997):175-181.
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