根据计算和经验，侧弯伸长率小，且焊缝表面经过加工，不受表面质量影响，所以试验结果更接近实际，更为准确。
On the basis of calcuiation and experience, through side-bending test, test piece's extensibility is relative small, and its weld surface after processed is unaffected by the piece's surface quality.
对试样进行了硬度、拉伸强度、断裂伸长率、热老化等性能试验；对老化后的试样表面进行了SEM表征。
Hardness, tensile strength, breaking elongation ratio and aging property of samples were tested and surface of sample after aging was represented by SEM.
试样表面镀锡使ADI的抗拉强度和伸长率下降，镀锡层不能有效防止ADI的水脆化。
Soldering on ADI surface decreased the ADI tensile strength and elongation, and solder coating could not prevent from water embrittlement.
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