姜小坤,余欢,徐志锋,刘剑,蔡长春

• 1:南昌航空大学轻合金加工科学与技术国防重点学科实验室

摘要(Abstract)：

采用真空气压浸渗法制备了三维五向编织M40碳纤维增强铝基复合材料(3D-C_f/Al),其增强体体积分数为51%,随后对3D-C_f/Al复合材料进行了液氮-196℃的深冷处理,探讨了深冷处理时间对3D-C_f/Al复合材料性能的影响以及作用机制。结果表明:深冷处理对3D-C_f/Al复合材料的力学性能和残余应力有显著的影响。随着深冷处理时间的延长,其拉伸强度呈逐步上升的趋势。经深冷处理36 h,拉伸强度达到最高620.09 MPa,相比铸态486.02 MPa提高了27.59%,其弹性模量高达173.81 GPa,相比铸态144.43 GPa提高了20.3%;深冷处理后,复合材料基体残余热应力明显降低,且随着深冷处理时间的延长,复合材料的残余应力状态发生了改变,基体由受拉伸应力转变为受压缩应力。深冷处理过程中因体积收缩效应导致的孔隙闭合及深冷处理使复合材料的残余应力降低是复合材料力学性能得以提高的原因。

关键词(KeyWords)： 3D-C_f/Al复合材料;深冷处理;残余应力;力学性能;真空气压浸渗

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51365043)

作者(Author): 姜小坤,余欢,徐志锋,刘剑,蔡长春

DOI: 10.13289/j.issn.1009-6264.2018-0250

参考文献(References)：

• [1] 马立敏,张嘉振,岳广全,等.复合材料在新一代大型民用飞机中的应用[J].复合材料学报,2015,32(2):317-322.MA Li-min,ZHANG Jia-zhen,YUE Guang-quan,et al.Application of composites in new generation of large civil aircraft[J].Acta Materiae Compositae Sinica,2015,32(2):317-322.
• [2] 韩晓君.深冷处理工艺对高速钢性能及残余应力影响的试验研究[D].太原:太原科技大学,2014.HAN Xiao-jun.Experimental study on the influence of properties of high speed steel and residual stress after cryogenic treatment[D].Taiyuan:Taiyuan University of Science and Technology,2014.
• [3] Donald R D.The promise of cryogenic processing[J].Machine Design,1981,53(2):73-76.
• [4] Thomas P S.Deep cryogenics[J].Heating Treating,1986(2):35-38.
• [5] 倪红军,顾涛,吕毅,等.深冷处理对6061铝合金组织与性能的影响[J].热加工工艺,2018,47(6):239-241.NI Hong-jun,GU Tao,Lü Yi,et al.Effects of cryogenic treatment on microstructure and properties of 6061 aluminum alloy[J].Hot Working Technology,2018,47(6):239-241.
• [6] 晋芳伟,黄晓因.深冷处理对Al-Si合金组织和力学性能的影响[J].金属热处理,2005,30(8):55-57.JIN Fang-wei,HUANG Xiao-ying.Effects of cryogenic treatment on the structure and mechanical properties of Al-Si alloy[J].Heat Treatment of Metals,2005,30(8):55-57.
• [7] 易翔,陈鼎.复合材料深冷处理研究进展[J].金属热处理,2012,37(6):73-76.YI Xiang,CHEN Ding.Research progress of cryogenic treatment of composite materials[J].Heat Treatment of Metals,2012,37(6):73-76.
• [8] Shao Y,Xu F,Liu W,et al.Influence of cryogenic treatment on mechanical and interfacial properties of carbon nanotube fiber/bisphenol-F epoxy composite[J].Composites Part B Engineering,2017,125:195-202.
• [9] Hemanth J. Tribological behavior of cryogenically treated B4Cp/Al-12% Si composite[J]. Wear, 2005, 258(11/12):1732-1744.
• [10] Levy A, Papazian J M. Elastoplastic finite element analysis of short-fiber-reinforced SiC/Al composites:effects of thermal treatment[J]. Materials Technology, 1991, 39(10):129-133.
• [11] 欧阳求保,崔光华,张荻,等.SiCp增强铝基复合材料热膨胀性能的影响[J].机械工程材料,2010,34(2):18-20.OUYANG Qiu-bao,CUI Guang-hua,ZHANG Di,et al.Effects of cryogenic treatment on thermal expansion properties of SiCp reinforced aluminum matrix composites[J].Mechanical Engineering Materials,2010,34(2):18-20.
• [12] 王秀芳, 武高辉, 姜龙涛,等.冷热循环处理对SiCp/2024Al尺寸稳定性的影响[J].材料热处理学报, 2006, 27(1):23-27.WANG Xiu-fang,WU Gao-hui,JIANG Long-tao,et al.Effects of thermal-cold cycling treatment on the dimensional stability of SiCp/2024Al[J].Transactions of Materials and Heat Treatment,2006,27(1):23-27.
• [13] 姜传海,吴建生,王德尊.低温处理对SiCw/Al复合材料声学特性及弹性模量的影响[J].金属热处理,2001,26(3):14-15.JIANG Chuan-hai,WU Jian-sheng,WANG De-zun.Influence of low temperature on ultrasonic characteristic and elastic modulus of SiCw/Al composite[J].Heat Treatment of Metals,2001,26(3):14-15.
• [14] 姜传海,崔玉环.低温循环过程中SiCw/6061Al复合材料残余应力的变化规律[J].金属热处理,1999,24(12):21-22.JIANG Chuan-hai,CUI Yu-huan.The change regularity of residual stress in SiCw/6061Al composites during low temperature cycling[J].Heat Treatment of Metals,1999,24(12):21-22.
• [15] 周勋,陈文革,谷臣清,等.深冷处理对Al2O3陶瓷颗粒纤维增强铝基复合材料的影响[J].特种铸造及有色合金,2006(3):185-187.ZHOU Xun,CHEN Wen-ge,GU Chen-qing,et al.Effect of Cryogenic Treatment on Al2O3 ceramic particle fiber reinforced aluminum matrix composites[J].Special Casting and Nonferrous Alloys,2006(3):185-187.
• [16] 聂明明,徐志锋,余欢,等.深冷处理对连续Cf/ZL301复合材料拉伸强度与残余应力的影响[J].中国有色金属学报,2017,27(9):1833-1837.NIE Ming-ming,XU Zhi-feng,YU Huan,et al.Effects of cryogenic treatment on tensile strength and residual stress of continuous Cf/ZL301 composite[J].The Chinese Journal of Nonferrous Metals,2017,27(9):1833-1837.
• [17] 谢薇,周聪,马乃恒,等.3D-Cf/Mg复合材料的热残余应力研究[J].宇航材料工艺,2012,42(3):75-77.XIE Wei,ZHOU Cong,MA Nai-heng,et al.Study on thermal residual stresses of 3D-Cf/Mg composites[J].Aerospace Materials and Technology,2012,42(3):75-77.
• [18] 马玉钦,齐乐华,卫新亮,等.真空吸渗挤压制备2D-Cf/Al复合材料的组织和性能研究[J].稀有金属材料与工程,2015,44(1):179-183.MA Yu-qin,QI Le-hua,WEI Xin-liang,et al.The study of microstructure and mechanical properties of 2D-Cf/Al composites prepared by vacuum infiltration extrusion[J].Rare Metal Materials and Engineering,2015,44(1):179-183.
• [19] Gayda J,Ebert L J.The effects of cryogenic cooling on the tensile properties of metal-matrix composites[J].Metallurgical Transactions A,1979,10(3):349-353.

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