次层为淬火马氏体组织；
原始材料的组织状态为形变马氏体、淬火马氏体及残余奥氏体。
The original structure consists of deformation induced martensite, quenching martensite and retained austenite.
结果表明：由于焊接电流过大，使焊缝产生淬火马氏体组织及较大的焊接残余应力，导致镀锌氢脆敏感性增加，造成吸油盘发生氢脆开裂。
The large welding current caused the formation of quenched martensite and the high residual stresses in the welding zone, resulting in the increase of zinc sensitivity of hydrogen attack.
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