Synergistic effect of in situ Al2O3 particles and Al-fiber-derived pores on mechanical properties of porous Fe–Cr–Ni composites
Qing Xu, Chang Chen, Shaowu Jiu, Yanxin Chen, Yan Liu
Xi'an University of Architecture and Technology
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Porous Fe–Cr–Ni composites with in situ Al 2 O 3 particles were successfully synthesized using Al powder and fibers. The composite with Al fibers of aspect ratio 30:1 at a 40 wt% replacement of Al powder exhibited 48.4% porosity, a bending strength of 57.3 MPa, and a conditional fracture toughness of 75.5 MPa m 1/2 . Fiber-derived Al 2 O 3 particles and pores enhanced toughness by promoting crack deflection and plasticity.
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工程Aluminum Alloys Composites Properties
Metallic Glasses and Amorphous Alloys · Powder Metallurgy Techniques and Materials
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