对不同堆焊试样进行硬度测试，对堆焊金属及其结合部位进行显微组织及断口形貌观察。
The hardness of different hardfacing specimens was measured, and the microstructures, fracture morphologies and the binding sites of different hardfacing specimens were observed.
对不同堆焊试样进行硬度测试，对堆焊金属及其结合部位进行显微组织及断口形貌观察。
The hardness of different hardfacing specimens was measured, and the microstructures, fracture morphologies and the binding sites of different hardfacing specimens were observed.
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