| Development of new type of wear and crack resistant hardfacing electrode |
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| 引用本文： | 王新洪,宋思利,邹增大,曲仕尧. Development of new type of wear and crack resistant hardfacing electrode[J]. 中国有色金属学会会刊, 2004, 14(4): 660-664 |
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| 作者姓名： | 王新洪 宋思利 邹增大 曲仕尧 |
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| 作者单位： | SchoolofMaterialsScienceandEngineering,ShandongUniversity,Jinan250061,China |
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| 基金项目： | 高等学校博士学科点专项科研项目，山东大学校科研和教改项目 |
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| 摘 要： | By using H08A bare electrode and the coating fluxes of ferrotitanium, rutile, graphite, calcium carbonate and calcium fluoride, a new type of wear and crack resistant hardfacing electrode was developed. The microstructure and wear properties of deposited layer were studied by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffractometry(XRD) and wear test. The results indicate that TiC particles are produced by direct metallurgical reaction between ferrotitanium or rutile and graphite during welding process. TiC particles with sizes in the range of 3 - 5μm are dispersed in the matrix of lath martensite and retained austenite. The deposited layer of the new type of hardfacing electrode possesses better wear and crack resistance than that of D618 and D667 hardfacing electrodes.
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| 关 键 词： | 堆焊 焊条 碳化钛 磨损 裂纹 TEM XRD |
Development of new type of wear and crack resistant hardfacing electrode |
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| WANG Xin-hong,SONG Si-li,ZOU Zeng-da,QU Shi -yao. Development of new type of wear and crack resistant hardfacing electrode[J]. Transactions of Nonferrous Metals Society of China, 2004, 14(4): 660-664 |
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| Authors: | WANG Xin-hong SONG Si-li ZOU Zeng-da QU Shi -yao |
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| Abstract: | By using H08A bare electrode and the coating fluxes of ferrotitanium, rutile, graphite, calcium carbonate and calcium fluoride, a new type of wear and crack resistant hardfacing electrode was developed. The microstructure and wear properties of deposited layer were studied by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffractometry(XRD) and wear test. The results indicate that TiC particles are produced by direct metallurgical reaction between ferrotitanium or rutile and graphite during welding process. TiC particles with sizes in the range of 3 - 5 μtm are dispersed in the matrix of lath martensite and retained austenite. The deposited layer of the new type of hardfacing electrode possesses better wear and crack resistance than that of D618 and D667 hardfacing electrodes. |
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| Keywords: | hardfacing electrode TiC wear resistance crack resistance |
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