制造零件用的铬钢粉.pdfVIP

学兔兔 第23卷第4期 粉 末 冶 金 工 业 V01．23 NO．4 2013年8月 P0W DER METALLURGY INDUSTRY Aug．2013 制造零件用的铬钢粉 Jeanette Lewenhagen (H6gan~s AB，Sweden) 摘 要：作为一种合金化元素，铬由于价格低廉、淬透性高及可重复利用，具有重要意义。近年 来，预合金化铬粉由于价格低容易得到，用途在增多。总的生产成本低这是将零件从钢材转为 粉末冶金材料的驱动力。通过采用预合金化铬材料，和常规钢零件相比，粉末冶金产业将进一 步增加其市场的份额。这篇论文考察了二种预合金化铬铁粉，一是用于高强度应用的含3％ cr与0．5％Mo的Astaloy CrM，另外一种是用于中等强度应用的含1．5 Cr与0．2 Mo的 Fe一1．5Cr一0．2Mo。说明了上述材料在含碳量为0．2 ～0．8 范围的力学性能。 关键词：预合金化钢粉；铬；粉末冶金 中图分类号：TF12 文献标识码：A 文章编号：1006—6543(2O13)04—0001—05 CHROMIUM STEEL POWDERS FoR COMPONENTS JEANETTE LEWENHAGEN (HOganfis AB。Sweden) Abstract：Chromium as an alloying element is of great interest due to its low cost，high hard— enability and possibility to recycle．Use of pre—alloyed chromium powders has increased re— cently due to its accessibility at low cost．Low total cost is and has been the driving force to convert parts made from conventional steel to PM materia1．By use of pre—alloyed chromium material。the PM industry can further increase its market share，compared to conventional stee1．Two pre—alloyed iron powders．one for high strength applications containing 3 9／6 Cr and 0．5％ Mo and one for medium strength applications containing 1．5 Cr and 0．2 Mo are considered in this paper．The mechanical properties for mentioned materials in the carbon range from 0．2 to 0．8 are described． Key words：pre-alloyed steel powder；chromium；PM 鉴于用粉末冶金生产的零件，都瞄准了汽车产 性能零件的Cu／Ni／Mo合金化材料的衲充材料，这 业，其主要驱动力是生产成本较低。在新材料牌号