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When the plating exist defect, the gold-plating nickel -plating both promote the stress - corrosion fracture of Kovar alloy.
在镀层存在缺陷时，镀金、镀镍层均促进柯伐合金的应力腐蚀开裂。
The low-cobalt kovar alloy 4j461 with a little Zr is a new type metal-ceramic sealing alloy with good performance and low cost.
含锆低钴可伐4 J 461是一种性能良好而廉价的新型封接合金。
When defect exists in the plating the gold-plating, nickel-plating both promote the stress-corrosion fracture of the Kovar alloy.
在镀层有缺陷时，镀金、镀镍层均促进可伐合金的应力腐蚀开裂。
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