Published July 1986 | Version v1
Journal article Metadata-only

Features of fracture mechanism for dispersion-strengthened tungsten

Creators

  • 1. AN Ukrainskoj SSR, Kiev. Inst. Problem Materialovedeniya

Description

Mechanical properties and fracture mechanisms for unalloyed dispersion-stregthened tungsten (W-Y2O3-HfO2) in the temperature interval from 20 to 2750 deg C are compared. In dispersion-strengthened tungsten, when testing temperature increasing, the same change of fracture mechanisms takes place as in unalloyed one: quasi-brittle chipping at low temperatures is partially changed by plastic fracture at 400 deg C; plastic fracture with the grain is observed in the interval from 1000 to 1600 deg C and beginning from 1800 deg C plastic intercrystalline fracture occurs

Additional details

Additional titles

Original title (Russian)
Особенности механизма разрушения дисперсно-упроченного вольфрама

Publishing Information

Journal Title
Poroshk. Metall.
Journal Issue
no.7
Series
Poroshk. Metall.
ISSN
0032-4795
CODEN
PMANA

INIS

Country of Publication
Ukraine
Country of Input or Organization
USSR
INIS RN
18045382
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
DISPERSION HARDENING; DUCTILE-BRITTLE TRANSITIONS; FRACTURE PROPERTIES; FRACTURES; GRAIN SIZE; HAFNIUM OXIDES; HIGH TEMPERATURE; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; TUNGSTEN; TUNGSTEN BASE ALLOYS; VERY HIGH TEMPERATURE; YTTRIUM OXIDES
Descriptors DEC
ALLOYS; CHALCOGENIDES; CRYSTAL STRUCTURE; ELEMENTS; FAILURES; HAFNIUM COMPOUNDS; HARDENING; MECHANICAL PROPERTIES; METALS; MICROSTRUCTURE; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SIZE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; TUNGSTEN ALLOYS; YTTRIUM COMPOUNDS

Optional Information

Notes
For English translation see the journal Soviet Powder Metallurgy and Metal Ceramics (USA).