添加石墨对Ni-Cr合金保护气氛钎焊金刚石磨粒界面组织的影响
첨가석묵대Ni-Cr합금보호기분천한금강석마립계면조직적영향
Effect on Microstructure for Adding Graphite to Ni-Cr Alloy when Brazing Diamond Abrasive in Controlled Atmosphere
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