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Record Details

Record 1 of 7795
Notch effects on room temperature tensile and bend properties of Ni3Al and Ni3Al+B
Author and Affiliation:
Khadkikar, P. S.(Case Western Reserve Univ., Cleveland, OH, United States)
Rigney, J. D.(Case Western Reserve Univ., Cleveland, OH, United States)
Lewandowski, J. J.(Case Western Reserve Univ., Cleveland, OH, United States)
Vedula, K.(Case Western Reserve University, Cleveland, OH, United States)
Abstract: The notched mechanical properties of Ni3Al and Ni3Al+B prepared by powder metallurgy techniques have been determined in both tension and bending at room temperature. Tensile tests performed using double-notched specimens containing relatively blunt notches produced intergranular fracture in both Ni3Al and Ni3Al+B, with evidence of fracture initiating in an intergranular manner ahead of the blunt notch in both cases. Estimates of notched fracture toughness from bend tests and of local grain boundary fracture stress from the notched tensile tests suggest an increase in these values with boron addition.
Publication Date: Jan 01, 1989
Document ID:
19900029870
(Acquired Nov 28, 1995)
Accession Number: 90A16925
Subject Category: METALLIC MATERIALS
Document Type: Conference Paper
Publication Information: (SEE A90-16876)
Publisher Information: United States
Meeting Information: Symposium on High-Temperature Ordered Intermetallic Alloys III; 3rd; Nov. 29-Dec. 1, 1988; Boston, MA; United States
Meeting Sponsor: U.S. Navy;
DOE;
NASA;
General Electric Co.
Financial Sponsor: NASA; United States
Organization Source: Case Western Reserve Univ.; Cleveland, OH, United States
Description: 6p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ALUMINIDES; BENDING; FRACTURE MECHANICS; NICKEL COMPOUNDS; NOTCH STRENGTH; POWDER METALLURGY; TENSILE PROPERTIES; BORON; CRACK PROPAGATION; GRAIN BOUNDARIES; MICROSTRUCTURE; STRESS CONCENTRATION; TENSILE TESTS
Imprint And Other Notes: IN: High-temperature ordered intermetallic alloys III; Proceedings of the Third Symposium, Boston, MA, Nov. 29-Dec. 1, 1988 (A90-16876 05-26). Pittsburgh, PA, Materials Research Society, 1989, p. 523-528. Research supported by NASA.
Availability Source: Other Sources
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