| 氩弧重熔对Q235钢热浸镀铝层组织和性能的影响 |
| |
| 引用本文： | 赵霞,徐家文,孙永鑫.氩弧重熔对Q235钢热浸镀铝层组织和性能的影响[J].焊接学报,2009,30(9):93-96. |
| |
| 作者姓名： | 赵霞 徐家文 孙永鑫 |
| |
| 作者单位： | 1. 黑龙江科技学院材料科学与工程学院,哈尔滨,150027
2. 哈尔滨电机厂有限责任公司哈尔滨大电机研究所,哈尔滨,150040 |
| |
| 基金项目： | 黑龙江省教育厅科学技术研究项目 |
| |
| 摘 要： | 采用氩弧重熔技术对Q235钢热浸镀铝层进行改性处理,利用扫描电子显微镜和X射线衍射仪对重熔前后组织进行了观察,并测定了重熔前后截面显微硬度.研究了重熔工艺参数对热浸镀铝层组织和性能的影响.结果表明,热浸镀铝层经氩弧重熔处理后,分层现象消失,组织上梯度过渡,试件由重熔层和淬硬层及基体构成.氩弧重熔处理能明显提高热浸镀铝层的显微硬度.氩弧重熔工艺参数对重熔层深度、硬度和裂纹率影响较大,焊接电流增加或焊接速度减小时,重熔层深度增加,硬度升高,裂纹率下降.
|
| 关 键 词： | 热浸镀铝 氩弧重熔 组织 显微硬度 |
| 收稿时间： | 2008/7/24 0:00:00 |
Influence of argon arc remelting process on microstructure and properties of coating prepared by hot dipping aluminizing on surface Q235 steel |
| |
| ZHAO Xi,XU Jiawen and SUN Yongxin.Influence of argon arc remelting process on microstructure and properties of coating prepared by hot dipping aluminizing on surface Q235 steel[J].Transactions of The China Welding Institution,2009,30(9):93-96. |
| |
| Authors: | ZHAO Xi XU Jiawen and SUN Yongxin |
| |
| Affiliation: | School of Materials Science and Engineering, Heilongjiang University of Science and Technology, Harbin 150027, China,School of Materials Science and Engineering, Heilongjiang University of Science and Technology, Harbin 150027, China and Harbin Institute of Large Electrical Machinery, Harbin Electric Machinery Company Limited, Harbin 150040, China |
| |
| Abstract: | Surface modification was carried out on hot dipping aluminizing surface of Q235 steel by argon arc remelting technology.The preand post microstructure steel treated by the argon arc remelting was investigated using SEM and XRD, the preand post microhardness of specimen cross section by argon arc remelting was also determined.Effect of argon arc remelting parameters on microstructure and mechanical properties of hot dipping aluminizing surface was investigated.The results show that, for the hot dipping aluminizing coating after argon arc remelting treatment, stratification phenomenon disappeared, gradient transition on microstructure appeared, specimen consisted of remelting layer, transition layer and substrate.Argon arc remelting treatment can obviously increase microhardness of hot dipping aluminizing coating.The process parameters influence the depth, hardness and crack rate of the remelting layer markedly.With the welding current increasing or the welding speed decreasing, the remelting layer depth and hardness increases, and the crack rate decreases. |
| |
| Keywords: | hot dipping aluminizing(HDA) argon arc remelting microstructure microhardness |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《焊接学报》浏览原始摘要信息 |
|
点击此处可从《焊接学报》下载全文 |
|
