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超高强QP980钢激光焊缝组织和性能研究 被引量:3

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摘要 采用CO2激光焊对1.6mm厚第三代超高强钢QP980进行对接焊,对接头进行分析,结果表明,焊缝组织均匀,为马氏体组织,而激光焊接热影响区中近母材区域产生的回火马氏体,造成该区域硬度显著降低,出现热影响区软化;焊接接头存在轻微软化现象;焊接接头表现出良好的力学性能和成形性能,焊缝杯突开裂位置垂直于焊缝。
出处 《金属加工(热加工)》 2015年第4期47-48,共2页 MW Metal Forming
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