Thermal stability of spark plasma sintered aluminum matrix composites reinforced with Ni3Al

被引：0
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作者：
Ferreira-Palma, C. [1 ]
De León-Murguía, N.V. [2 ]
Lagunes-Paredes, Y. [1 ]
Santaella-González, J.B. [1 ]
López-Hirata, V.M. [2 ]
Beltrán Zúñiga, M.A. [2 ]
Hernández-Santiago, F. [3 ]
Dorantes-Rosales, H.J. [2 ]
机构：
[1] Universidad Veracruzana, Facultad de Ciencias Químicas, Boca del Río, Mexico
[2] Instituto Politécnico Nacional, ESIQIE-DIMM, Ciudad de México, Mexico
[3] Instituto Politécnico Nacional, ESIME-UA, Ciudad de México, Mexico
来源：
Materials Letters | 2024年 / 377卷
关键词：
Ni3Al intermetallics are known for their excellent mechanical properties at high temperatures. In this work; thermal stability of spark-plasma sintered Al-matrix composites reinforced with Ni3Al particles is investigated. Composites were sintered at 16 MPa and 450 °C for 3 min and aging treatments at 300; 400 and 500 °C were applied. After 500 h of aging at 300 and 400 °C the Ni3Al intermetallic is still present. After 5 h of aging at 500 °C; Ni3Al transforms into a mixture of the Al3Ni and Al3Ni2 intermetallics. The transformation progressed until only Al3Ni can be detected; dispersed in the Al matrix. Effects of aging in microhardness were limited at 300 and 400 °C; but an important decrease was observed at 500 °C. © 2024 Elsevier B.V;
D O I：
10.1016/j.matlet.2024.137481
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