This work reveals that addition of 4–6 wt.% of aluminum powder to the composition of a hard alloy powder provides surfacing of high-quality coatings without pores, cracks, and other defects. At the same time, aluminum is a strong deoxidizer and a nitride forming element, which permits use of nitrogen, compressed air, and hot hydrocarbons instead of argon as transporting gases. It is shown that the use of aluminum powder reduces the loss of alloying elements, increases the hardness of deposited coatings by 3–5 НRС, and also significantly reduces the cost of plasma surfacing due to a reduction in argon consumption.

中文翻译：

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添加铝粉的粉末硬质合金等离子堆焊的冶金特征

这项工作表明，在硬质合金粉末的成分中添加 4-6 wt.% 的铝粉可提供无孔、裂纹和其他缺陷的高质量涂层的表面处理。同时，铝是一种强脱氧剂和氮化物形成元素，允许使用氮气、压缩空气和热碳氢化合物代替氩气作为输送气体。结果表明，铝粉的使用减少了合金元素的损失，使沉积涂层的硬度提高了3-5 НRС，并且由于氩气消耗的减少，还显着降低了等离子堆焊的成本。