| 两种70kg级实芯焊丝的对比分析 |
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| 引用本文： | 薛旭斌,冯兆龙.两种70kg级实芯焊丝的对比分析[J].材料开发与应用,2012,27(3):7-9. |
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| 作者姓名： | 薛旭斌 冯兆龙 |
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| 作者单位： | 中国船舶重工集团公司第七二五研究所,河南洛阳,471023 |
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| 摘 要： | 分别对进口与国产两种70kg级实芯焊丝的成分、夹杂物级别、焊缝组织、熔敷金属拉伸断口形貌进行了对比分析。采用金相显微镜对焊丝夹杂物和焊缝组织进行了评定和观察,通过扫描电镜观察分析了断口的形貌特征。分析表明,两种焊丝的夹杂物主要为氧化铝类和球状氧化物类;焊缝组织均为针状铁素体+粒状贝氏体+先共析铁素体;断口形貌呈杯锥状,属于韧性穿晶断裂。
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| 关 键 词： | kg级 实芯焊丝 对比 分析 |
Comparison and Analysis of Two Kinds of 70kg Class Solid Welding Wire |
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| XUE Xu-bin
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FENG Zhao-long.Comparison and Analysis of Two Kinds of 70kg Class Solid Welding Wire[J].Development and Application of Materials,2012,27(3):7-9. |
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| Authors: | XUE Xu-bin FENG Zhao-long |
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| Affiliation: | (Luoyang Ship Material Research Institute,Luoyang 471023,China) |
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| Abstract: | The component,non-metallic inclusion,structure of weld and fracture texture of two kinds of solid welding wire fabricated home and imported were compared and analyzed.The non-metallic inclusion and weld microstructure were tested by means of metalloscope and fracture morphology of the deposited metal was observed under SEM.The results manifested that the non-metallic inclusion of the two wires are mainly aluminum oxide and spherical oxide,the weld microstructure consists of acicular ferrite,granular bainite and proeutectoid ferrite,and the cup-cone tensile fracture indicates ductile and transgranular fracture mechanism of deposited metal of the two wires. |
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| Keywords: | 70kg class Solid welding wire Comparison Analysis |
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