Nanocrystallization and mechanical properties of an amorphous electrodeposited Ni75W25 alloy

被引：13
作者：
Yamasaki, T
Schlossmacher, P
Ehrlich, K
Ogino, Y
机构：
[1] Himeji Inst Technol, Fac Engn, Dept Mat Sci & Engn, Himeji, Hyogo 67122, Japan
[2] Forschungszentrum Karlsruhe, Inst Mat Forsch 1, D-76021 Karlsruhe, Germany
来源：
MECHANICALLY ALLOYED, METASTABLE AND NANOCRYSTALLINE MATERIALS, PART 2 | 1998年 / 269-2卷
关键词：
Ni-W alloys; amorphous; nanocrystallization; electrodeposition; hardness;
D O I：
10.4028/www.scientific.net/MSF.269-272.975
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An amorphous Ni-W alloy containing about 25 at. % W has been prepared by electrodeposition. Nanocrystallization behavior of this alloy has been studied by X-ray diffraction, high resolution transmission electron microscopy (HR-TEM) and small angle Xray scattering. The Hall-Fetch strengthening mechanism was observed for the hardness extending to a finest grain size of about 10 nm. When the grain size is less than about 10 nm, decrease of the hardness was observed. This decrease may be due to the significant increase of the intercrystalline volume fraction, especially the fraction associated with the triple junction.
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页码：975 / 980
页数：6
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