| 表面重熔加工对材料耐空泡腐蚀的影响 |
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| 引用本文： | 雷玉成,冯良厚,朱强,赵晓军.表面重熔加工对材料耐空泡腐蚀的影响[J].江苏大学学报(自然科学版),2007,28(4):321-323. |
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| 作者姓名： | 雷玉成 冯良厚 朱强 赵晓军 |
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| 作者单位： | 江苏大学,材料科学与工程学院,江苏,镇江,212013 |
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| 基金项目： | 江苏省工业科技攻关项目 |
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| 摘 要： | 采用TIG(钨极惰性气体保护焊)表面重熔工艺对表面耐空泡腐蚀堆焊材料进行改性加工,与磨削表面加工对比研究了TIG表面重熔对空泡腐蚀的影响.结果表明:在45 h空泡腐蚀试验后,磨削试样的累积失重量是TIG表面重熔试样的1.59倍;相变产生的马氏体剥落是质量损失的主要形式,而TIG表面重熔工艺延迟了奥氏体到马氏体的相变,降低了质量损失;大量裂纹沿着马氏体片层发展,而TIG重熔表面抑制了裂纹发展,避免了大的物质剥落.
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| 关 键 词： | 空泡腐蚀 TIG表面重熔 失重率 相变 表面重熔 重熔加工 堆焊材料 空泡腐蚀 影响 erosion resistance cavitation process remelting surface 物质 裂纹发展 马氏体片 奥氏体 延迟 质量损失 剥落 相变 失重量 试样 |
| 文章编号： | 1671-7775（2007）04-0321-03 |
| 修稿时间： | 2006-06-21 |
Effect of TIG surface remelting process on cavitation erosion resistance |
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| LEI Yu-cheng,FENG Liang-hou,ZHU Qiang,ZHAO Xiao-jun.Effect of TIG surface remelting process on cavitation erosion resistance[J].Journal of Jiangsu University:Natural Science Edition,2007,28(4):321-323. |
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| Authors: | LEI Yu-cheng FENG Liang-hou ZHU Qiang ZHAO Xiao-jun |
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| Institution: | School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China |
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| Abstract: | Surface welding material was treated by TIG(tungsten inert gas) surface remelting process for its modification.Compared with grinding process,the effect of TIG surface remelting process to cavitation erosion resistance was investigated.The results show that after 45 h of cavitation erosion test,the mass loss of the specimen with ground surface was 1.59 times the specimen with TIG remelted surface.The fracture of martensite transformed by austenite was the main form of mass loss.TIG surface remelting process delays the transformation-saturated point and reduces the mass loss.TIG remelting process represses crack developing so that to avoid big particles falling off. |
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| Keywords: | cavitation-erosion TIG surface remelting process mass loss phase transformation |
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