铌元素对中碳钢组织及性能的影响  

Effect of niobium on Microstructure and properties of medium carbon steel

作　　者：孙妍 董唐顺 唐雪峰 SUN Yan;DONG Tang-shun;TANG Xue-feng(North China University of science and technology to promote innovation education base,Tangshan 063210,China;North China Polytechnic University School of metallurgy and energy,Tangshan 063210,China)

机构地区：[1]华北理工大学以升创新教育基地,河北唐山063210 [2]华北理工大学冶金与能源学院,河北唐山063210

出　　处：《世界有色金属》2018年第10期276-277,共2页World Nonferrous Metals

摘　　要：铌元素是钢铁工业生产中十分重要的一种合金元素,储量丰富、价格低廉,因此有十分广阔的应用前景。本文对45号钢不含铌元素的试样1和含有铌元素的试样2分别进行了测定实验。利用光学显微镜、扫描电子显微镜和透射电镜等材料检测仪器。结果表明:铌元素的加入使中碳钢奥氏体晶粒得到细化,改善了耐磨性。Niobium element is an important alloy element in iron and steel industry.It has rich reserves and low price.In this paper,the determination experiments of sample 1 and sample 2 containing niobium elements in no.45 steel were carried out respectively.Materials detection instruments such as optical microscope,scanning electron microscope and transmission electron microscope were used.The results showed that the addition of niobium element refined the austenite grains of medium carbon steel and improved the wear resistance.

关 键 词：Nb元素 中碳钢 奥氏体晶粒 力学性能 

分 类 号：TG335.5[金属学及工艺—金属压力加工]