Mechanical properties of molybdenum alloyed liquid phase-sintered tungsten-based composites
Technical Report
·
OSTI ID:220323
Tungsten-based composites are fabricated from mixed elemental powders using liquid phase sintering, usually with a nickel-iron matrix. During sintering, the tungsten undergoes grain growth, leading to microstructure coarsening that lowers strength but increases ductility. Often the desire is to increase strength at the sacrifice of ductility, and historically, this has been performed by postsintering deformation. Swaging a 93W-5Ni-2Fe alloy with 15 to 20 pct area reduction gives a 1000 to 1200 MPa tensile strength, 70 HRA hardness, and 15 to 20 pct fracture elongation.
- Research Organization:
- Pennsylvania State Univ., University Park, PA (United States). Dept. of Engineering Science and Mechanics
- OSTI ID:
- 220323
- Report Number(s):
- AD-A-301893/4/XAB; CNN: Contract DAAH04-93-G-0258; TRN: 60920663
- Resource Relation:
- Other Information: PBD: Aug 1995
- Country of Publication:
- United States
- Language:
- English
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