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

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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