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在耐磨堆焊焊条药皮中加入稀土元素，并研究其在堆焊焊条中的作用。试验结果表明，适量的稀土元素可以细化组织，提高堆焊层硬度和耐磨性。
Rare earth elements are added to the hardfacing electrode coating and its role in the surfacing electrode. The test results show that the appropriate amount of rare earth elements can refine the structure and improve the hardness and wear resistance of the overlay.