对不同厚度微米级和宽度的H62黄铜箔进行了拉伸试验,研究试样厚度和宽度与其屈服强度和伸长率的关系.结果表明:随着厚度的减小,合金箔的微拉伸屈服强度先是减小,但当厚度小于250μm后,屈服强度开始增大;随着宽度的减小,其伸长率一直在减小;但随厚度从500μm减小到50μm,伸长率先增大再减小,在厚度为250μm时出现最大值.
The relationship of the yield strength and elongation with thickness and width was studied through tensile testing of micro-sized H62 copper alloy foil specimens. The results show that the yield strength of the alloy foils decreased with the decrease of thickness firstly, while the yield strength increased when the thickness was less than 250 μm. With the decrease of section width, the elongation of the specimens decreased. When the thickness was reduced from 500 μm to 50 μm, the elongation increased firstly and then decreased, the maximum value was obtained at the thickness of 250 μm.
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