两种脱氧剂对铸钢件夹杂物和低温冲击性能的影响  

Influence of Two Deoxidizers on Inclusions and Low Temperature Impacting Property of Steel Castings

作　　者：李廷忠[1] 罗吉荣[1] 万里[1] 

机构地区：[1]华中科技大学材料成型与模具技术国家重点实验室,湖北武汉430074

出　　处：《铸造》2009年第2期144-147,共4页Foundry

摘　　要：采用铝终脱氧剂和铝硅钙钡复合脱氧剂分别对普通C级铸钢件进行炉内脱氧精炼后进行了低温冲击性能试验,并借助光学显微镜和扫描电镜对夹杂物的分布、形貌做了分析。结果表明:铝终脱氧后夹杂物分布较多,夹杂呈片状分布;铝硅钙钡复合脱氧后夹杂分布量明显减少,且夹杂物呈球团状分布;铝硅钙钡复合脱氧后铸钢件的低温冲击功优于铝终脱氧的效果。After deoxidizing in refining furnace by Al final deoxidizer and Al-Si-Ca-Ba compound deoxidizer respectively, impacting experiment at low temperature for common C grade steel casting was carried out, and the distribution and morphology of inclusions were analyzed using optical microscope and scanning electron microscope. The result shows that the inclusions by AI final deoxidizer is much more compared with that by Al-Si-Ca-Ba compound deoxidizer, and distributed in flake shape; while the inclusions by Al-Si-Ca-Ba compound deoxidizer was obviously decreased, and distributed in spheric shape. The impacting energy of steel castings by Al-Si-Ca-Ba compound deoxidizer was superior to that by AI final deoxidizer.

关 键 词：铝终脱氧剂 Al-Si-Ca-Ba复合脱氧剂 夹杂物 低温冲击功 铸钢件 

分 类 号：TG221.1[金属学及工艺—铸造] TG260