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SURFACE STATE AND CATALYTIC ACTIVITY OF ACTIVATED AMORPHOUS Fe_(80)Zr_(12)B_8 ALLOY

WANG Xike SHEN Ningfu CHEN Haisong Zhengzhou Institute of Technology , Zhengzhou , ChinaZHANG Haifeng Luoyang Research Institute for Ship Materials , Luoyang , ChinaGU Haicheng Xi'an Jiaotong University , Xi'an , China Professor , Research Centre for Materials , Zhengzhou Institute of Technology , Zhengzhou 450002 , China

金属学报(英文版)

The depth profile of composition,chemical state of elements and morphology of as- received and activated amorphous Fe_(80)Zr_(12)B_8 alloy ribbons have been studied by means of Auger electron spectroscopy,X-ray photoelectron spectroscopy and scanning Auger microprobe combined with Ar ion bombardment...

关键词: amorphous Fe_(80)Zr_(12)B8 alloy , null , null , null

TRACKING OBSERVATION ON SUBSURFACE CRACK IN BEARING STEEL GCr15 UNDER ROLLING CONTACT

CHEN Longqing Zhengzhou Institute of Technology , Zhengzhou , China CHEN Qing Luoyang Institute of Technology , Luoyang , China

金属学报(英文版)

Based on the sequent tracking observation on spalling of steel GCr15 under rolling contact fa- tigue,an expression for estimating the propagation of subsurface cracks was derived.The rol- ling contact fatigue life was found to be markedly related to the subsurface crack propagation angle.A new expla...

关键词: contact fatigue , null , null , null , null

Featureless Zone in Rapidly Solidified Aluminum Alloy Splats

Ningfu SHEN Yali TANG Dongjie ZHANG Longqing CHEN Shaokang GUAN Research Centre for Materials , Zhengzhou Institute of Technology , Zhengzhou , 450002 , China

材料科学技术（英文）

The microstructures of rapidly solidified (RS) Al-Fe-Ce-Ti and Al-Fe-V-Si alloys obtained by means of rotating blade quenching were studied with optical microscopy,transmission electron microscopy (TEM).The featureless zone observed in the two alloys reveals that the new technique offers a higher so...

关键词: rapid solidification , null , null , null

EFFECT OF Ti ON MICROSTRUCTURE OF RAPIDLY SOLIDIFIED Al-Si ALLOYS

SHAO Guosheng SHEN Ningfu Zhengzhou Institute of Technology , Zhengzhou , China

金属学报(英文版)

An addition of Ti as alloying element to Al-Si binary alloy will reduce the undercooling-abili- ty on rapid solidification of the melt-spun ribbon.The microstructure will be encoarsened even at initiation of its solidification,so as to aggravate the eellular segregation of Si in the alloy ribbon....

关键词: rapid solidification , null , null , null

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