Effect of strain rate on the deformation and fracture behavior of ductile metals containing porosity

Conference · · TMS (The Metallurgical Society) Paper Selection; (USA)

OSTI ID:5450256

Magnusen, P E; Follansbee, P S; Koss, D A ^[1]

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1. Michigan Technological Univ., Houghton (USA)

The influence of strain rate on the tensile deformation and fracture behavior of powder-fabricated titanium and nickel containing porosity has been investigated. Measurements of uniform strains, local fracture strains, and elongations to failure show that, over the range of strain rates from 10{sup {minus}4} to 10{sup 2} s{sup {minus}1}, there is little or no effect of the strain rate on the fracture behavior of these materials at any of the porosity levels studied. A slight elongation minimum in the two lowest porosity levels for titanium occurs at intermediate strain rates and is interpreted to be due to thermal gradients forming during deformation.

• OSTI ID: 5450256
• Report Number(s): CONF-840909-; CODEN: TMPSA
• Journal Information: TMS (The Metallurgical Society) Paper Selection; (USA), Vol. 56; Conference: TMS-AIME fall meeting, Detroit, MI (USA), 16-20 Sep 1984; ISSN 0197-1689
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
NICKEL
DEFORMATION
FRACTURE PROPERTIES
TITANIUM
CORRELATIONS
POROSITY
POWDER METALLURGY
STRAIN RATE
TENSILE PROPERTIES
ELEMENTS
MECHANICAL PROPERTIES
METALLURGY
METALS
TRANSITION ELEMENTS
360103* - Metals & Alloys- Mechanical Properties