一种Cr-W- Mo-Mn-V铁基堆焊层的力学与耐磨性能
Mechanical Properties and Wear Resistance of Cr-W-Mo-Mn-V Iron-based Surfacing Layer
于 昆
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作者单位：（秦皇岛职业技术学院 机电工程系, 河北 秦皇岛 066100）
中文关键字：Cr-W-Mo-Mn-V铁基堆焊焊条；堆焊层；力学性能；耐磨性
英文关键字：Cr-W-Mo-Mn-V iron-based surfacing electrode；surfacing layer; mechanical properties; wear resistance
中文摘要：通过试验考察了一种Cr-W-Mo-Mn-V铁基堆焊层经不同温度回火后的硬度变化，并测试了该堆焊层经500℃回火前后的冲击性能和耐磨性。结果表明，该堆焊层焊态具有较高的回火稳定性，经500℃保温2h回火后，堆焊层的硬度达49.5HRC，其冲击韧度和耐磨性较焊态分别提高了7.98%和11.43%。
英文摘要：The hardness of Cr-W-Mo-Mn-V iron-based surfacing layer after tempering at different temperatures was investigated, and the impact toughness and wear resistance of the welded surfacing layer before and after tempering at 500℃ for 2h was tested. The results show that the as-welded surfacing layer possesses higher tempering stability, after tempering at 500℃ for 2 h, the hardness of the welded surfacing layer reaches 49.5 HRC, and its impact toughness and wear resistance is increased by 7.98% and 11.43%, respectively, compared with those of as-welded surfacing layer.