MICROSTRUCTURE OF REGENERATED HIGH DENSITY TUNGSTEN ALLOYS MADE BY OXIDATION-REDUCTION

Abstract

Abstract: The mechanical properties of regenerated W-alloys relating to the chemical purity and size of reclamation powders of 93W-Ni-Fe-Co(Mn)alloy chips,the structure of main constituents of the powders,as well as microstrueture and fractograph of regenerated W-alloys made by the reclamation powders,composition of W particle and binder phase,content,structure and distribution of main impurity elements have been studied by means of optical microscope, SEM,XRES.XRD,TEM,AES and chemical analysis.The feasibility of oxidation-reduc- tion process for reclamation and the possibility of praetical application of regenerated W-al- loys have been discussed.

Key words: oxidation-reduction, regeneration, high density tungsten alloys, microstructure

NIE Changshen WU Lin Nei Monggol Institute of Metallic Materials,Baotou,ChinaWANG Deyun Beifang Tools Factory,Mudanjiang,China Senior Engineer,Nei Monggol Institute of Metallic Materials,P.O.Box No.4 Baotou,Inner Mongolia,China. MICROSTRUCTURE OF REGENERATED HIGH DENSITY TUNGSTEN ALLOYS MADE BY OXIDATION-REDUCTION[J]. Acta Metallurgica Sinica (English Letters), 1989, 2(10): 272-278.

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MICROSTRUCTURE OF REGENERATED HIGH DENSITY TUNGSTEN ALLOYS MADE BY OXIDATION-REDUCTION

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