Phosphor bronze strip is the most widely used ductile material of copper alloys at present.
锡磷青铜带是当前应用最广泛的铜合金弹性材料。
The backlight photography with single sample was used to measure the true stress-strain of the ductile material after necking in tensile test.
本文采用单试样逆光拍照法对延性材料拉伸试验缩颈后的真实应力-应变进行了有效的测量。
When a ductile material is tested, the reduction in cross-sectional area due to waisting causes an increased stress without an increased force, to ensure that extension proceeds uniformly.
当韧性材料被测试时，由于颈缩使横载截面面积减小，以至在受力没有增加的情况下引起应力的增加，以保证延伸继续如常进行。
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