温度对Ti/Cf/PMR超混杂层板力学性能的影响研究  

Influence of Temperature on Mechanical Properties of Ti/Cf/PMR Hybrid Laminates

作　　者：陈凯 胡玉冰[1] 刘成[1] 符学龙[1] 范敏郁 陶杰[1] CHEN Kai;HU Yubing;LIU Cheng;FU Xuelong;FAN Minyu;TAO Jie(College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)

机构地区：[1]南京航空航天大学材料科学与技术学院,江苏南京210016

出　　处：《机械制造与自动化》2017年第6期31-34,74,共5页Machine Building & Automation

基　　金：南京航空航天大学研究生创新基地(实验室)开放基金(kfjj20150606)

摘　　要：采用热压法制备了新一代Ti/Cf/PMR超混杂层板复合材料,研究了该超混杂层板材料在室温120℃、170℃、220℃及300℃等服役条件下的拉伸、层剪和弯曲等常规力学性能,并分析其损伤破坏机理。实验结果表明:钛板TA2经过喷砂处理后表面粗糙度增加,这样有利于提高超混杂层板的界面结合性能。Ti/Cf/PMR超混杂层板在室温下具有优良的力学性能,抗拉强度可达1 013.72 MPa,层间剪切强度可达65.08 MPa,同时弯曲强度可达965.51 MPa。随着试验温度的升高,该超混杂层板的力学性能呈现下降趋势。当实验温度升高到300℃,该层板的拉伸强度、层间剪切强度和弯曲强度保留率分别约为40%、34%和58%。This paper uses the hot modelling process to fabricate Ti/Cf/PMR hybrid composite laminates and researches on its mechanical properties,including tensile strength,interlaminar shear(ILS)strength and flexural strength,at room temperature(RT)120℃,170℃,220℃and300℃,respectively.The results indicate that surface roughness of titanium sheets is obviously improved after grit blasting,thus improving the bonding strength at the interface of the hybrid composite laminates.The Ti/Cf/PMR hybrid composite laminates exhibite good mechanical properties at the room temperature,the tensile strength,interlaminar shear strength and flexural strength are up to1013.72MPa,65.08MPa and965.51MPa.The mechanical properties come into a trend of decline with the temperature rise.The tensile strength,ILSS strength and flexural strength are still about40%,34%and58%at300℃.

关 键 词：超混杂层板 PMR型聚酰亚胺 高温性能 失效机理 

分 类 号：TB33[一般工业技术—材料科学与工程]