硼、硫和铝对磷在IN718合金中作用的影响  

INFLUENCES OF BORON, SULFUR AND ALUMINUM ON THE EFFECTS OF PHOSPHORUS IN IN718 ALLOYS

作　　者：宋洪伟[1] 郭守仁[1] 卢德忠[1] 徐岩[1] 王玉兰[1] 胡壮麒[1] 

机构地区：[1]中国科学院金属研究所

出　　处：《材料研究学报》2000年第2期183-187,共5页Chinese Journal of Materials Research

摘　　要：分析了硼、硫和铝对磷在ＩＮ７１８合金中作用的影响．结果表明，磷改善晶界δ相， 显著提高 持久性能．磷提高持久寿命的相对幅度不受铝含量的明显影响，但随着硼含量的增加而加强、硫含量的增 加而减弱．硼、硫和铝对磷的作用的影响取决于其各自的晶界行为．The influences of boron, sulfur and aluminum on the effects of phosphorus in IN718 alloys have been studied. The results showed that phosphorus improves the δ-phase on the grain boundary and increases the stress-rupture properties markedly. The relative increment of the stress- rupture life due to the phosphorus addition is not modified by aluminum but strengthened and weakened by boron and sulfur respectively. The effect of phosphorus is a phenomenon related to grain boundary. The characteristics of the influences of boron, sulfur, and aluminum depend on their respective behavior with respect to grain boundary.

关 键 词：IN718合金 磷 硼 硫 铝 持久性能 镍基合金 

分 类 号：TG132.22[一般工业技术—材料科学与工程] TG146.15[金属学及工艺—合金]