稀土元素对BT100H套管钢低温冲击韧性及组织影响  

Effects of Rare Earth Elements on Low Temperature Impact Toughness and Microstructure of BT100H Sleeving Steel

作　　者：靳燕[1] 史文义[1] 李培德[1] Jin Yan;Shi Wen-yi;Li Pei-de(Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010

出　　处：《包钢科技》2020年第3期54-57,共4页Science & Technology of Baotou Steel

摘　　要：利用蔡司Axio Obserevr D1m金相显微镜和EVO 50HV扫描电镜对BT100H套管钢进行了低温冲击断口及组织的检测研究,研究表明稀土改善了低温下冲击韧性,特别是材料的横向冲击韧性;稀土还具有一定细化组织的作用。The detection study on low temperature impact fracture and microstructure of BT100 H sleeving steel with Zeiss Axio Obserevr D1 m metallographic microscope and EVO 50 HV scanning electron microscope is introduced. The research showed that the low temperature impact toughness,especially the transverse impact toughness of material was improved by rare earth as well as the rare earth also was with a certain function of refining microstructure.

关 键 词：低温冲击韧性 显微组织 稀土元素 

分 类 号：TG142.1[一般工业技术—材料科学与工程]