异种金属复合旋压的成形机理及界面热阻的影响机制

项目名称： 异种金属复合旋压的成形机理及界面热阻的影响机制

项目编号： No.51275131

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 徐文臣

作者单位： 哈尔滨工业大学

项目金额： 80万元

中文摘要： 异种金属复合管以其低成本和适应复杂服役环境能力而在石化、海洋、电力及国防等领域应用日益增加。旋压技术在异种复合管制造方面具有良好潜力，但界面结合强度较低使其应用受限。为此，本项目将以Steel/Al、Ti/Al和Mg/Al等复合管为对象，开展异种金属复合旋压成形机理和界面热阻影响机制研究，主要包括：1）复合旋压的变形机理和界面协调变形条件；2）复合旋压的界面结合机制及性能相关性；3）界面热阻对复合旋压变形的影响机制；4）异种金属旋压复合管的成形质量控制及工艺优化。该研究针对异种金属复合旋压的瓶颈问题，将系统揭示异种金属复合旋压的变形机理、界面结合机制及界面热阻的影响，提出异种金属复合旋压成形缺陷和界面强化的控制方法，获得制造异种金属旋压复合管的优化工艺路线。该研究有助于建立异种金属复合旋压成形的理论方法，为高质量异种金属复合管的制造提供科学指导，促进异种金属复合管的应用。

中文关键词： 复合管；复合旋压；界面热阻；变形协调；结合机理

英文摘要： Clad tubes of dissimilar metals are increasingly needed in many industrial fields of petroleum chemistry, ocean development, electrical power and national defense due to their low cost and high adaptability to harsh service conditions. Power spinning has great potential for the manufacture of composite tube of dissimilar metals, yet leads to the low interface bonding strength, which limits the application of as-spun clad metal tube. Thus, the project is proposed to study the forming mechanism and influence of thermal boundary resistance during clad spinning of Steel/Al, Ti/Al and Mg/Al clad tubes. The main content includes: 1) Deformation mechanism of clad spinning and deformation compatibility conditions, 2) Interface bonding mechanism of clad spinning and performance evaluation of composite tubes, 3) Influence of thermal boundary resistance on clad spinning deformation, 4) Quality control and forming process optimization of as-spun composite tube of dissimilar metals. To solve the bottle-neck problems, the study will reveal the deformation mechanism of clad spinning, interface bonding mechanism of dissimilar metals and influencing law of thermal boundary resistance on deformation compatibility. On the basis, the control measures of spinning defects and interface strengthening will be proposed and the processin

英文关键词： clad tube；spin bonding；interface heat resistance；deformation compatibility；bonding mechanism