| 高硬度CO2气保护堆焊药芯焊丝的研制及其耐磨性能研究 |
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| 引用本文： | 李国栋,栗卓新,李红,王阳阳. 高硬度CO2气保护堆焊药芯焊丝的研制及其耐磨性能研究[J]. 中国表面工程, 2009, 22(6). DOI: 10.3969/j.issn.1007-9289.2009.06.012 |
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| 作者姓名： | 李国栋 栗卓新 李红 王阳阳 |
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| 作者单位： | 北京工业大学,材料科学与工程学院,北京,100022 |
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| 摘 要： | 研制了一种高硬度气保护堆焊药芯焊丝.对含钨量分别为3.26%,4.13 %,6.15 %,8.26 %的堆焊层性能进行了研究.利用显微照相仪观察堆焊层的金相组织,对堆焊层进行了点扫描及湿磨粒磨损试验.研究结果表明,堆焊层的组织为马氏体和残余奥氏体,碳化物呈球状,弥散分布于基体内,为堆焊层不均匀结晶的结果.堆焊层中含钨量为6.15 %时,热处理后的平均洛氏硬度值为59 HRC,磨损失重量为0.097 g.含钨量继续增加时,硬度值略有下降,耐磨粒磨损性能略有提高.
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| 关 键 词： | 气保护堆焊 药芯焊丝 耐磨粒磨损 钨 |
Development of CO_2 Gas Shielding Flux Core Wire with High Hardness and Research on Wear Resistant Property |
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| LI Guo-dong,LI Zhuo-xin,LI Hong,WANG Yang-yang(College of Materials Science,Engineering,Beijing University of Technology,Beijing. Development of CO_2 Gas Shielding Flux Core Wire with High Hardness and Research on Wear Resistant Property[J]. China Surface Engineering, 2009, 22(6). DOI: 10.3969/j.issn.1007-9289.2009.06.012 |
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| Authors: | LI Guo-dong LI Zhuo-xin LI Hong WANG Yang-yang(College of Materials Science Engineering Beijing University of Technology Beijing |
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| Affiliation: | LI Guo-dong,LI Zhuo-xin,LI Hong,WANG Yang-yang(College of Materials Science , Engineering,Beijing University of Technology,Beijing 100022) |
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| Abstract: | A flux cored wire with high hardness is developed and the shielding gas is carbon dioxide.The tungsten in four deposited metal is 3.26 %,4.13 %,6.15 %,8.26 %,respectively.The fine texture and microstructure of the deposited metal is observed with microscope.Spot scan and wear resistant tests are performed.Research show that the microscopic structure are martensite,residual austentite and carbonide.The carbonide is scattered in the base metal and caused by the unbalance of crystal.The weight percent of tungs... |
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| Keywords: | the shielding gas overlay welding flux cored wire grain abrasion tungsten |
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