| 稀土氧化物及合金元素对堆焊金属显微组织的影响 |
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| 引用本文： | 李达,杨育林,刘利刚,杨庆祥,有顾新盛,张家振.稀土氧化物及合金元素对堆焊金属显微组织的影响[J].焊接学报,2010,31(1):37-40. |
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| 作者姓名： | 李达 杨育林 刘利刚 杨庆祥 有顾新盛 张家振 |
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| 作者单位： | 1. 燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛,066004
2. 燕山大学机械工程学院,河北秦皇岛,066004 |
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| 基金项目： | 河北省科技攻关资助项目(04212201D);;河北省百名优秀人才支持计划资助项目(09215106D) |
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| 摘 要： | 采用金相显微镜对堆焊金属的显微组织进行了观察,用X射线衍射仪(XRD)对堆焊金属中相结构进行了分析,用扫描电镜(SEM)及能谱仪(EDS)对断口形貌及夹杂物进行了观察分析.结果表明,在含有Cr,Mn,Mo,N i等合金元素的焊条药皮中添加稀土氧化物,其堆焊金属组织为细针状铁素体,断口为细韧窝状,且分布均匀.而未添加稀土氧化物的堆焊金属组织为粗针状铁素体及少量珠光体,断口中存在准解理断裂形貌.添加稀土氧化物后,堆焊金属中夹杂物类型发生改变,形状近似球形,尺寸均在6μm以下,且弥散分布于堆焊金属中.
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| 关 键 词： | 稀土氧化物 堆焊金属 显微组织 夹杂物 |
| 收稿时间： | 2008/8/7 0:00:00 |
Effects of RE oxide and alloy elements on microstructure of hardfacing metal |
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| LI D,YANG Yulin,LIU Ligang,YANG Qingxiang,GU Xinsheng and ZHANG Jiazhen.Effects of RE oxide and alloy elements on microstructure of hardfacing metal[J].Transactions of The China Welding Institution,2010,31(1):37-40. |
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| Authors: | LI D YANG Yulin LIU Ligang YANG Qingxiang GU Xinsheng and ZHANG Jiazhen |
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| Affiliation: | 1.State Key Laboratory of Metastable Materials Science & Technology;Yanshan University;Qinhuangdao 066004;Hebei;China;2.School of Mechanical Engineering;Qinhangdao 066004;China |
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| Abstract: | The microstructures of the hardfacing specimens for large gear were observed by optical microscopy(OM) and the matrix phase of the hardfacing metals was determined by X-ray diffraction(XRD).Meanwhile,the fractographs and inclusions were analyzed by scanning electron microscopy(SEM) with energy dispersive spectrum(EDS).The results show that,the microstructure of the hardfacing metal is mainly composed of the fine acicular ferrite.The fractograph of the specimen with addition rare earth(RE) oxide(Ce2O3) and C... |
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| Keywords: | RE oxide hardfaceing metal microstructure inclusion |
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