Development of Functionally Gradient Materials via Powder Metallurgy.

Production of silicon carbide Al 2124 alloy functionally graded materials by mechanical powder metallurgy technique

ub lis he d by M an ey P ub lis hi ng ( c) IO M C om m un ic at io ns L td A mechanical powder metallurgy process involving a vibration stage before cold and hot compaction has been developed to manufacture functionally graded materials (FGMs). The microstructure and mechanical properties of p 2124 FGMs produced by this process have been studied. It was found that the vibration stage modified t...

Crystallography Materials Science & Metallurgy

Compressibility of 304 Stainless Steel Powder Metallurgy Materials Reinforced with 304 Short Stainless Steel Fibers

Powder metallurgy (P/M) technique is usually used for manufacturing porous metal materials. However, some P/M materials are limitedly used in engineering for their performance deficiency. A novel 304 stainless steel P/M material was produced by a solid-state sintering of 304 stainless steel powders and 304 short stainless steel fibers, which were alternately laid in layers according to mass rat...

Efficiency and wear properties of spur gears made of powder metallurgy materials

|III Abstract Powder metallurgy (PM) is usually used in manufacturing parts with complex geometries, such as gears and structural parts. The main attractions of PM are the high rate of material utilization, environmental friendliness of production, economic advantages (especially for complex geometries), and possibility of obtaining lighter components. To find a wide range of applications and c...

Porous, Superelastic NiTi Produced by Powder-Metallurgy

Near-stoichiometric NiTi was foamed in the solid state at elevated temperatures through creep expansion of highpressure argon pores previously entrapped during powder consolidation. A sample with 17% porosity was found to be superelastic up to a compressive stress of 800 MPa.