A preliminary assessment of the properties of a chromium silicide alloy for aerospace applications
作者： S.V. Raj
DOI: 10.1016/0921-5093(94)03281-5
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摘要: Abstract A preliminary assessment of the physical, mechanical and oxidation properties a two-phase Cr 3 Si alloy macro-alloyed with Mo for potential aerospace applications is discussed. Detailed cyclic, isothermal low temperature “pest” studies conducted between 773 1773 K revealed that has excellent due to formation dual protective oxides scales 2 O at temperatures SiO high temperatures. The also lasted least 100 cycles 1473 under action 0.3 mach combustion flame in burner rig tests. compressive brittle-to-ductile transition about 1500 K. creep strength as-cast as good or better than MoSi reinforced either SiC p w , respectively, while those powder metallurgically processed alloys are comparable only unreinforced . room fracture toughness was determined be 2.5 MPa m 1
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