1. Phosphorus eutectic and carbon compound with boracium were found in the structure of rubbing-pair material when reasonable amounts of the elements of phosphorus and boracium were added.
   研究结果表明:合理添加磷、硼等元素,在合金铸铁摩擦配副材料中形成适量的磷共晶和含硼碳化物,可明显提高其耐磨减摩性;

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