Effects of Hafnium, Boron and Zirconium on the Ductility of Ni3(Al, Fe) Intermetallic Compounds

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Effects of hafnium, boron and zirconium on the ductility of Ni3(Al, Fe) intermetallic compounds were studied using tensile test and SIMS analysis. Ni3(Al, Fe) alloy with 0.1 at.% Hf, 0.05 at.% B and 0.1 at.% Zr additions showed maximum elongations of about 30% at 300K, 10% at 300K and 14% at 473K, respectively. The fracture mode of the alloy without the additive was the mixture of intergranular and transgranular fractures, but the addition of Hf, Zr or B changed the fracture mode to transgranular only. SIMS analysis showed that the beneficial effects of Hf, Zr or B segregation on the grain boundary strength are consistent with the grain boundary cohesion theory.
Publisher
한국재료학회
Issue Date
1992
Language
ENG
Citation

한국재료학회지, v.2, no.4, pp.306 - 310

metadata.dc.identifier.alternativecitation
한국재료학회지 v.2,no.4,pp.306-310
ISSN
1225-0562
URI
http://hdl.handle.net/10203/8506
Appears in Collection
MS-Journal Papers(저널논문)
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