Effect of alloying on interatomic interaction in the intermetallic compound Ni3Al

被引：0
|
作者：
Mitrokhin, YS
Belash, VP
Stepanova, NN
Rinkevich, AB
Klimova, IN
Akshentsev, YN
机构：
[1] Udmurt State Univ, Izhevsk 426034, Russia
[2] Russian Acad Sci, Inst Physicotech, Ural Div, Izhevsk 426000, Russia
[3] Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620219, Russia
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2005年 / 99卷 / 03期
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中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The elastic moduli and the Debye temperature were experimentally determined for a ternary alloy Ni75Al19Nb6 based on the intermetallic compound Ni3Al. The values of elastic moduli were used to calculate the energy of effective pairwise interaction by the bond-order potential method. Alloying is shown to increase the binding energy in Ni3Al. The result obtained is supported by the X-ray photoelectron spectroscopy study of the electronic structure of the Ni75Al19Nb6 alloy. The local density of states (LDOS) was theoretically analyzed to reveal factors that determine the site preference for substitutional chemical elements used to alloy Ni3Al (with niobium and cobalt as examples).
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页码：265 / 271
页数：7
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