烧结工艺对含硅锰烧结钢性能与组织的影响  

The Influence of Sintering Process on Properties and Microstructure of Sintered Steel Bearing Silicon and Manganese

作　　者：周国理[1] 何凤鸣[1] 洪恒泉[1] 杨宗坡[1] B.Uhrenius 

机构地区：[1]东北大学 [2]瑞典金属研究所

出　　处：《东北大学学报（自然科学版）》1996年第4期404-407,共4页Journal of Northeastern University(Natural Science)

基　　金：中国-瑞典合作科研项目

摘　　要：研究了烧结温度和时间对Ｆｅ－３．１Ｍｎ－１．２Ｓｉ－０．４Ｃ烧结钢性能与组织的影响．实验结果表明：提高烧结温度和延长烧结时间都能改善Ｆｅ－３．１Ｍｎ－１．２Ｓｉ－０．４Ｃ烧结钢的机械性能；并使烧结试样由膨胀逐渐向收缩过渡．Ｆｅ－３．１Ｍｎ－１．２Ｓｉ－０．４Ｃ烧结钢在１１００℃以上烧结时，由于有液相的出现，合金化过程可以被大大地提高；在烧结过程中，只有那些较小的硅锰母合金颗粒才能全部熔化，而那些尺寸较大的颗粒只能部分熔化．The influence of sintering temperature and time on the properties and microstructure of Fe3.1Mn-1. 2Si-0. 4C sintered steel has been studied. The results show that an increase of sintering temperature and time improves mechanical properties of sintered steel and causes the dimensional change to vary from positive to negative. The liquid phase appears in the sintered samples at 1100℃,and subsequently the alloying diffusion process will be promoted greatly. Those small master alloy particles are able to dissolve completely,while those large master alloy particles,however,can only partially dissolve.

关 键 词：烧结温度 烧结时间 烧结钢 组织 钢 

分 类 号：TG142.1[一般工业技术—材料科学与工程]