高炭素鋼の引張剪断接着強度に及ぼす接着剤硬化条件および試験温度の影響

概要

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Effect of cure schedule and test temperature on tensile shear adhesion strength was investigated in a S55C high carbon steel/epoxy resin adhesive system, and was discussed the interrelations among shear, tensile and peel adhesion strengths. The results obtained are as follows : (1) Probability distribution of adhesion shear strength was found to be followed by Weibull distribution. (2) Shear strength obtained for various heating temperatures and its holding times, tested under 20℃, was divided into three stages in Larson-Miller parameter plot, that is, incomplete adhesion stage I of interface failure, suitable adhesion stage II of cohesive failure and deterioration adhesion stage III of cohesive-interface mixing failure mode. (3) The test temperature dependence on shear strength having peaks was observed and the fracture mode was cohesive failure below 40℃ corresponding to the temperature of a maximum strength, whereas shear strength decreased gradually with the appearance of an interface failure above 40℃. (4) There lay a positive linear correlation between shear and tensile adhesion strengths, in addition to similar relationship between peel and tensile adhesion strengths.
社団法人日本鉄鋼協会の論文
1990-03-01