Valence electron structures and properties of Ni-based corrosion resistant alloy

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	Valence electron structures and properties of Ni-based corrosion resistant alloy
	Yang Rui-cheng; Shu Jun; Chen Kui; Wang Ka-xuan
刊名	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
	2007-11
卷号	17 页码:S84-S87
关键词	nickel-base corrosion-resistant alloy valence electron structure solid solution effect corrosion resistance
ISSN号	1003-6326
英文摘要	The corrosion resistance and mechanical properties were tested and compared for the newly synthesized as-cast, as-solution Ni-Cr-Mo-Cu corrosion resistant alloys and 1Cr18Ni9Ti austenitic stainless steel. Their valence electron structural units were constructed, and the relative parameters were calculated by means of the Empirical Electron theory of Solids and Molecules (EET). The results show that, during alloy elements Cr, Mo and Cu entering Ni-matrix, the bonding strength n(A) and bonding energy E-A of the strongest bond of the alloy are greatly increased, causing the stronger solid solution strengthening effects (about 30% increase in ab). Also, as reinforcement of the main bond network and the improvement of stability of the alloy system due to the solution of these alloying elements in gamma-Ni, the ionization of metal atoms in corrosion solution and the flow of electrons from anode to cathode would all be impeded during electro-chemical corrosion processes, which leads to the excellent corrosion resistant ability of the present Ni-Cr-Mo-Cu alloy (about 2-3 orders of magnitude as high as 1Cr18Ni9Ti austenitic stainless steel) in several highly aggressive solutions.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	ALLERTON PRESS INC
WOS记录号	WOS:000251737200019
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/35567]
专题	兰州理工大学材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Yang Rui-cheng
作者单位	Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Yang Rui-cheng,Shu Jun,Chen Kui,et al. Valence electron structures and properties of Ni-based corrosion resistant alloy[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2007,17:S84-S87.
APA	Yang Rui-cheng,Shu Jun,Chen Kui,&Wang Ka-xuan.(2007).Valence electron structures and properties of Ni-based corrosion resistant alloy.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,17,S84-S87.
MLA	Yang Rui-cheng,et al."Valence electron structures and properties of Ni-based corrosion resistant alloy".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 17(2007):S84-S87.