【摘要】 对表面带包铝层以及用机械方法将表面包铝层去除两种状态的LY12CZ铝合金板材的拉伸性能进行对比试验。试验结果表明 ,去除包铝层后材料的拉伸强度σb 和屈服强度σ0 .2 及伸长率δ变大 ,但断面收缩率Ψ变小。并绘制以上两种表面状况LY12CZ铝合金板材的拉伸σ—S曲线更多还原

【Abstract】 LY12CZ Aluminum alloy is widely used on aircrafts, and lots of researchers pay close attention to its mechanical and chemical properties. The Tensile test results of two groups of LY12CZ sheet were given. In group 1, the Aluminum clad existed on the surfaces of the samples. While in group 2,the Aluminum clad was taken out by mechanical method.更多还原