Deformation and Fracture of P/M (Powder/Metallurgy) Titanium Alloys.
Annual rept. 1 Oct 83-30 Sep 84,
MICHIGAN TECHNOLOGICAL UNIV HOUGHTON DEPT OF METALLURGICAL ENGINEERING
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Progress is reviewed for a research program whose purpose is to provide a broad-based understanding of the application and consequences of certain advanced processing techniques to high performance alloys in general and to Ti alloys in particular. The research ranges from experimental studies of hot isostatic pressing HIP to experimentalanalytical modeling of the deformation and fracture of materials with pre-existing porosity. Aspects of the search are also a fundamental study of fracture utilizing engineering materials containing processing-induced defects. Progress for the period October 1, 1983 to September 30, 1984 is reviewed for the following portions of this research program 1 the influence of porosity on the deformation and fracture of alloys over a wide range of strain rates 2 the effects of voidpore distributions on ductile fracture as modeled by arrays of holes 3 hot isostatic pressing of metallic powders and 4 grain sizestress state effects on the hydrogen embrittlement of titanium. Author
- Metallurgy and Metallography