【摘要】 对不同磷含量5炉GH169（IN718）合金进行力学性能测试及显微组织分析，结果表明，磷具有"反常"的强韧化作用，随磷含量增加，GH169合金最终热处理后的650℃持久寿命和塑性亦显著增加．更多还原

【Abstract】 The influence of phosphorus ranging from 10-5～1.3 × 10-4 on mechanical propertiesand microstructure of GH169(IN718) has been detected. The results show that phosphorus has astrengthening and toughening effect， i. e， to increase stress rupure life and ductility of GH169(IN718)at 650℃.更多还原