Influence of Rare Earth on Carbide in Weld Metal钢铁研究学报：英文版论文
【题名】：Influence of Rare Earth on Carbide in Weld Metal钢铁研究学报：英文版论文(Influence of Rare Earth on Carbide in Weld MetalGangTieYanJiuXueBao：YingWenBanLunWen) 【关键词】：高碳钢 焊接 稀土 TEM XRD EDX 焊接材料 碳化物 【keywords】：GaoTanGang HanJie XiTu TEM XRD EDX HanJieCaiLiao TanHuaWu 【作者】：ZHANGYuan-Bin RENDeng-Yi      【来源】： 知识词典 【期刊名称】：钢铁研究学报：英文版(GangTieYanJiuXueBao：YingWenBan) 【国际标准刊号】：1006-706X        【国内统一刊号】：11-3678 【作者单位】：ShandongUniversity,Jinan250086,China(ShandongUniversity,Jinan250086,China) 【分类号】：TG457.11 TG42      【页码】：-67-70      【出版年】：2003.3 【下载地址】：下载pdf全文         The influence of rare earths (RE) on carbides in high carbon steel weld metal was studied by transmission electron microscope (TEM) and energy dispersive X-ray microanalysis (EDX). It is found that rare earth markedly affects the quantity, morphology and distribution of carbides. The precipitating mechanism of carbides was proposed in which rare earth compounds with high surface energy serve as the nucleation sites for carbides in superheated liquid metal and the induced carbides are precipitated extensively and distributed evenly. The prefer-ential precipitation of carbides decreases the carbon content in matrix, which is transformed into low carbon lath martensite after welds are chilled to room temperature.
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