鉴于一些合金元素的价格不断上涨,迫使人们利用铬与锰来提高烧结钢的淬透性与力学性能。铬与锰是锻钢的常用合金元素,但因为它们对氧有很高的亲合力,故难于加入到粉末冶金钢中。美国利用铬与锰的高碳铁合金,正在开发含Cr、Mn、Si和Mo的无Ni高性能烧结钢。这种低合金烧结钢可在 In view of the rising price of some alloying elements, people are forced to use chromium and manganese to improve the hardenability and mechanical properties of sintered steel. Chromium and manganese are common alloying elements forged steel, but because of their high affinity for oxygen, it is difficult to add to powder metallurgy steel. In the United States, high-carbon ferro-alloys using chromium and manganese are being developed and Ni-free high-performance sintered steels containing Cr, Mn, Si and Mo are being developed. This low-alloy sintered steel is available