氧对焊缝金属吸氮机制的影响

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通过测定6种焊缝中的氮、氧含量,研究了氧对焊缝金属吸氮量的影响,发现液态金属在低氧([O]<0.02%)和高氧([O]>0.03%)条件下不同的吸氮机制,并且提出通过调整药芯成分,将焊缝氧含量控制在0.02%~0.03%范围内,可使焊缝吸氮量最低.
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