Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 12    No. 1    February 2002

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Determination of interfacial fracture 
energies of Ni films on titanium and
stainless steel substrates by peel test
REN Feng-zhang(任凤章),ZHOU Gen-shu(周根树),ZHAO Wen-zhen(赵文轸),
HU Zhi-zhong(胡志忠),ZHENG Mao-sheng(郑茂盛),JU Xin-hua(鞠新华)

State Key Laboratory for Mechanical Behavior of Material,
Xi′an Jiaotong University,Xi′an 710049,China

Abstract:The interfacial fracture energy G,which includes the effect of residual stress, was deduced for Ni films on titanium and stainless steel substrates based on the energy-balance argument and the numerical method for the work expenditure Gdb of Moidu et al.The estimated interfacial fracture energies G are independent of the film thickness,the peel angle and the residual stress.The value of G for Ni films on a stainless steel substrate is about 5.47~6.08N/m for various peel angles θ,while 5.33~6.72N/m for Ni films on titanium substrate with various film thickness h.The effect of the residual stress on the peel strength P/b was also discussed.

 

Key words: peel test;interfacial fracture energy; work expenditure; residual stress

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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