Special features of failure of the tungsten-copper sintered pseudoalloy

In this work, the methods of transmission microscopy using replicas and scanning electron microscopy were used to examine the special features of failure of tungsten-copper pseudoalloys produced by various methods, after mechanical tensile tests at room temperature and at 1200/sup 0/C; attention was...

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Veröffentlicht in:	Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States) 1986-06, Vol.25 (6), p.516-521
Hauptverfasser:	Pilyankevich, A. N., Paderno, V. N., Martynenko, A. N., Pilipovskii, Yu. L.
Format:	Artikel
Sprache:	eng
Schlagworte:	360102 - Metals & Alloys- Structure & Phase Studies 360103 - Metals & Alloys- Mechanical Properties ALLOYS BRITTLENESS COPPER ALLOYS CRACK PROPAGATION CRYSTAL STRUCTURE DENSITY ELECTRON MICROSCOPY FABRICATION FAILURES FRACTURE MECHANICS FRACTURE PROPERTIES FRACTURES HOT PRESSING INTERMETALLIC COMPOUNDS MATERIALS SCIENCE MATERIALS TESTING MATERIALS WORKING MECHANICAL PROPERTIES MECHANICAL TESTS MECHANICS METALLURGY MICROSCOPY MICROSTRUCTURE PHYSICAL PROPERTIES POWDER METALLURGY PRESSING SCANNING ELECTRON MICROSCOPY TENSILE PROPERTIES TESTING TIME DEPENDENCE TRANSMISSION ELECTRON MICROSCOPY TUNGSTEN ALLOYS
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Zusammenfassung:	In this work, the methods of transmission microscopy using replicas and scanning electron microscopy were used to examine the special features of failure of tungsten-copper pseudoalloys produced by various methods, after mechanical tensile tests at room temperature and at 1200/sup 0/C; attention was given to the effect of the relative density of the tungsten network, the holding time in hot compacting, and the grain size composition and grade of the initial powder.
ISSN:	0038-5735 1573-9066
DOI:	10.1007/BF00792394