粉末冶金压坯激光整体烧结后的组织与性能

STRUCTURES AND PROPERTIES OF P/M COMPACTS AFTER LASER BULK SINTERING

摘要: 应用连续CO₂激光器对铜基、铁基粉末压坯(有效厚度 ≤ 10mm)施行整体辐射烧结,然后对其显微组织、孔隙度、硬度、冲击韧性、拉伸性能及耐磨性进行观测与分析。结果表明,激光整体烧结件具有较常规烧结件优良的组织与性能。

Abstract: A CO₂ continuous laser was used to sinter copper and iron based powder green compacts (with an effective thickness of ≤ 10mm) by bulk radiation, followed by the survey and analysis of their microstructure porosity, hardness, impact toughness, tensile stength and wear resistence. Results show that bulk compact sintered by laser has the structure and properties superior to conventional sintering.