| 基于熵模型镀锡银钎料钎焊性能的定量表征 |
| |
| 引用本文： | 王星星,上官林建,何鹏,龙伟民,武胜金.基于熵模型镀锡银钎料钎焊性能的定量表征[J].焊接学报,2020,41(1):18-22. |
| |
| 作者姓名： | 王星星 上官林建 何鹏 龙伟民 武胜金 |
| |
| 作者单位： | 1.华北水利水电大学，郑州，450045 |
| |
| 基金项目： | 河南省产学研合作项目;国家自然科学基金;河南省高等学校科技创新人才支持计划;中国博士后科学基金面上项目 |
| |
| 摘 要： | 以BAg50CuZn钎料和BAg34CuZnSn钎料为基材，采用镀覆扩散组合工艺制备了两类镀锡银钎料，利用综合热分析仪、润湿试验炉、万能拉力试验机测定镀锡银钎料的熔化温度区间、润湿面积及钎焊接头抗拉强度，建立了钎料润湿熵和接头强度熵的数学模型，并与熔炼合金化制备的相同Sn含量的传统钎料进行对比. 结果表明，与相同Sn含量的传统钎料相比，镀锡银钎料的润湿熵值更小、强度熵值略高. 同等Sn含量条件下，镀锡银钎料和传统钎料润湿熵值的变化趋势，与对应钎料在316LN不锈钢表面的润湿面积随Sn含量的变化趋势基本一致，强度熵值的变化趋势与对应钎料钎焊316LN不锈钢接头的抗拉强度随Sn含量的变化趋势几乎吻合；润湿熵和强度熵的模型在一定程度上可定量预测镀锡银钎料的钎焊工艺性和接头力学性能.
|
| 关 键 词： | 镀锡银钎料 润湿熵 强度熵 润湿面积 抗拉强度 |
| 收稿时间： | 2019/7/2 0:00:00 |
Quantitative characterization of brazability for Sn-plated Ag brazing filler metals based on entropy model |
| |
| WANG Xingxing,SHANGGUAN Linjian,HE Peng,LONG Weimin and WU Shengjin.Quantitative characterization of brazability for Sn-plated Ag brazing filler metals based on entropy model[J].Transactions of The China Welding Institution,2020,41(1):18-22. |
| |
| Authors: | WANG Xingxing SHANGGUAN Linjian HE Peng LONG Weimin and WU Shengjin |
| |
| Affiliation: | 1.North China University of Water Resources and Electric Power, Zhengzhou, 450045, China2.State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, China3.State Key Laboratory of Advanced Brazing Filler Metals and Technology, Zhengzhou Research Institute of Mechanical Engineering Co., Ltd., Zhengzhou, 450001, China |
| |
| Abstract: | Two types of Sn-plated AgCuZnSn brazing filler metals were prepared by a combinative process of electroplating and thermal diffusion using BAg50CuZn and BAg34CuZnSn brazing filler metal. The comprehensive thermal analyzer, wetting test furnace and universal tensile testing machine were applied to analyze the melting temperature range, wetting area and tensile strength. The mathematical model of the filler metals wetting entropy and the joint strength entropy were established, and compared with the traditional brazing filler metal prepared by melting alloying under the same condition of Sn content. The wetting entropy of the Sn-plated Ag brazing alloys are smaller than the traditional brazing filler metals, and its joint strength entropy value is slightly higher than the latter. The wetting entropy value of the Sn-electroplated brazing alloys and traditional filler metal are similar to the change trend of the wetting area for those filler metals on the surface of the 316LN stainless steel. The change trend of the brazed joint strength entropy value with those filler metals are basically the same as the tensile strength of the 316LN stainless steel joint with the increase of the Sn content. The experimental results show that the mathematical model of the wetting entropy and the joint strength entropy can quantitatively predict the brazing process and mechanical properties of the Sn-electroplated Ag brazing alloys to a certain extent. |
| |
| Keywords: | Sn-electroplated Ag brazing alloys wetting entropy strength entropy wetting area tensile strength |
| 本文献已被 CNKI 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 |
|
