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| ANOMALOUS THERMAL RESISTIVITY OF Au-Pd-Cr ALLOYS |
| HE Huachun (Institute of Precious Metals Research;Kuming) |
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Cite this article:
HE Huachun (Institute of Precious Metals Research;Kuming). ANOMALOUS THERMAL RESISTIVITY OF Au-Pd-Cr ALLOYS. Acta Metall Sin, 1987, 23(1): 63-69.
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Abstract The effect of various regimes of heat treatment on the resistance and ther- moelectromotive force of AuPd_(38.6)Cr_3 and AuPb_(36.6)Cr_8 alloys as well as the rela- tionship between their properties and structure have been investigated.The room temperature resistivity of these alloy specimens after annealing at different tem- peratures increases and maximizes at 450 and 850℃,but decreases with cold wor- king.As the cold worked specimen aged at 400 and 480℃ two peaks were ob- served on the resistivity plot and X-ray relative intensities vs time curve,while two plateaus were found on the thermoelectromotive force curve.All the pheno- mena appear correspondingly on the time axis.It seems that this anomalous behaviour is closely related to the special clusters forming in the super-saturated solid solution.
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Received: 18 January 1987
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1 何华春.金属学报,1981;17:97
2 Mott N F.J Inst Met,1937;60:267 |
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