白口化球墨铸铁耦合仿生表面形成机制及磨损机理研究

项目名称： 白口化球墨铸铁耦合仿生表面形成机制及磨损机理研究

项目编号： No.51305158

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 机械、仪表工业

项目作者： 庄健

作者单位： 吉林大学

项目金额： 26万元

中文摘要： 以沙漠蝎子体表结构和鼹鼠爪趾结构及挖掘动作特征作为仿生原型，设计仿生表面及兼具两种仿生原型结构特点的复合仿生表面；采用模拟仿真方法研究仿生表面的减阻耐磨机理及复合仿生表面不同仿生结构在磨损过程中相互影响和共同作用机理；采用磨料磨损实验研究仿生表面结构及参数对减阻耐磨性能的影响；采用模拟仿真方法分析仿生表面结构及参数对球墨铸铁铸造过程中局部流场及热场分布的影响，对仿生表面结构及参数对球墨铸铁表面白口化行为、不同相之间界面结合、材料强度、磨料磨损行为等性能的影响进行实验测试分析，建立仿生表面结构及参数与球墨铸铁材料性能间的耦合关系，实现仿生表面结构与材料二元耦合；采用表面白口化球墨铸铁制备具有仿生表面结构的深松铲尖和搅拌片，测试部件的机械性能和磨损性能，研究仿生表面结构在不同服役速度和磨料性质条件下的减阻耐磨性能和作用机理。为采用耦合仿生设计方法提高部件耐磨料磨损性能提供理论依据和应用基础。

中文关键词： 耦合仿生；耐磨；深松；测试技术；

英文摘要： The surface structures of desert scorpion, and the profile of claw toe and excavation action of mole be treated as bionic prototype, and the bionic surface and complex bionic surface with different Bionic structural units. The drag reduction wearable mechanism, reciprocal influence and joint action mechanism between the different bionic structures units of complex bionic surface will be researched by simulation methods. The The influence of structure and parameter on the wear resistance and drag reduction performance will be researched by abrasive wear experiment. The influence of structure and parameter of bionic surfaces and complex bionic surface on the distribution of local flow field and thermal field of process of casting ductile iron will be researched by simulation methods. The relationship between the structure and parameter of bionic surfaces and chilling behavior of ductile iron, interfacial bonding, material strength, abrasive wear behavior will be test and verify by related experiments. The coupling relationship between the structure and parameter of bionic surfaces and complex bionic surface and material properties will be defined. The deep pine shovel tip and stirring piece with bionic surfaces or complex bionic surface will be prepared by chilled ductile iron, the machinery performance and abrasi

英文关键词： Coupling bionic；Wear-resisting；Subsoiling；Test technique；