High Temperature Structural MaterialsNo Access

IMPROVEMENT OF AMBIENT DUCTILITY AND TOUGHNESS BY Γ PHASE PRECIPITATION IN NIAL-CR(MO)/NB ALLOYS

School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China

Address: School of Material Science and Engineering, Beijing University of Aeronautics and Astronautics, No.37 Xueyuan Road, Beijing 100191, China.

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SHUSUO LI

School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China

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SHENGKAI GONG

School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China

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https://doi.org/10.1142/S0217979210065829Cited by:1 (Source: Crossref)

Abstract

Effects of different ratios of Ni to Al on the ductility and toughness of Ni_33+xAl_28-xCr₃₀Mo₄Nb₅ (x=0, 6, 9, 12) alloys are investigated. High temperature compression test is also conducted. The results show that with ratio of Ni to Al up to 1.77, γ phase precipitation result in ductility and fracture toughness enhanced at room temperature. The reinforced Cr₂Nb-type phase and γ phase benefit for the high temperature strength and room temperature ductility, respectively.

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