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测量了去合金后的掺砷双相黄铜H_(62)As中的正电子寿命,为黄铜优先腐蚀的双空位机制提供了较为直接的实验证据。讨论了掺砷黄铜抑制脱锌的机理。
The positron lifetime in H_ (62) As doped arsenic was measured, which provided more direct experimental evidence for the double vacancy mechanism of brass preferential corrosion. The mechanism of dezincification with arsenic-doped brass was discussed.