预热温度对SiC_f/Al复合材料纤维损伤和性能的影响
|
摘要
选用单向排布SiC纤维预制体为增强体材料,ZL301合金为基体材料,纤维预热温度选取500、530、550℃,制备纤维体积分数为40%的连续SiCf/Al复合材料,研究了不同纤维预热温度对连续SiC_f/Al复合材料的相组成、纤维损伤和力学性能的影响。结果表明,随着纤维预热温度上升,纤维的损伤越严重,预热500℃的纤维抗拉强度最高,为1 827MPa,是SiCf纤维原丝强度的77.7%,预热550℃时的纤维抗拉强度最低,仅为1 360MPa;纤维预热温度对连续SiC_f/Al复合材料的力学性能有较大影响,纤维预热温度为530℃时复合材料的抗拉强度最高,为483MPa,断口呈现韧性断裂特征,表现出适中的界面结合强度。
The continuous SiC_f/Al composites with 40%fibre volume fraction were prepared by using SiC fibre unidirectional preform as reinforcement material,ZL301 alloy as matrix material,and fibre preheating temperature at 500℃,530℃and 550℃.The phase composition,fiber damage and mechanical properties of continuous SiCf/Al composites with different fiber preheating temperatures were analyzed.The results reveal that with the increase of preheating temperature,the damage of fibers becomes more serious.The tensile strength of fibers preheated at 500℃reaches 1 827 MPa,which is 77.7%of the strength of fiber precursors.While that of fibers preheated at 550℃reach only 1 360 MPa.The fiber preheating temperature has a great influence on the mechanical properties of continuous SiC_f/Al composites.The tensile strength of the composites is the highest when the fibers are preheated at 530℃,reaching 483 MPa,and fracture surface of the composites is characterized by tough crack and moderate interfacial bonding strength.
The continuous SiC_f/Al composites with 40%fibre volume fraction were prepared by using SiC fibre unidirectional preform as reinforcement material,ZL301 alloy as matrix material,and fibre preheating temperature at 500℃,530℃and 550℃.The phase composition,fiber damage and mechanical properties of continuous SiCf/Al composites with different fiber preheating temperatures were analyzed.The results reveal that with the increase of preheating temperature,the damage of fibers becomes more serious.The tensile strength of fibers preheated at 500℃reaches 1 827 MPa,which is 77.7%of the strength of fiber precursors.While that of fibers preheated at 550℃reach only 1 360 MPa.The fiber preheating temperature has a great influence on the mechanical properties of continuous SiC_f/Al composites.The tensile strength of the composites is the highest when the fibers are preheated at 530℃,reaching 483 MPa,and fracture surface of the composites is characterized by tough crack and moderate interfacial bonding strength.
引文
[1]刘玫潭,蔡旭升,李国强.高性能SiCf增强Al基复合材料的显微组织和热性能[J].中国有色金属学报,2013,23(4):1 040-1 046.
[2]迟长志,李世欣,张永胜.SiCp对铝基复合材料组织和磨损性能的影响[J].特种铸造及有色合金,2014,34(4),426-429.
[3]肖代红,陈康华,黄伯云.SiC颗粒增强铝基复合材料的显微组织与力学性能[J].特种铸造及有色合金,2007,27(7),508-511.
[4]王涛,赵宇新,付书红,等.连续纤维增强金属基复合材料的研制进展及关键问题[J].航空材料学报,2013,33(2):87-96.
[5]刘兵,彭超群,王日初,等.大飞机用铝合金的研究现状及展望[J].中国有色金属学报,2010,20(9):1 705-1 715.
[6]VANAROTTI M,SHRISHAIL P,SRIDHAR B R,et al.Surface modification of SiC reinforcements&its effects on mechanical properties of aluminium based MMC[J].Applied Mechanics&Materials,2014,446-447(1):93-97.
[7]崔霞,周贤良,欧阳德来,等.热处理对SiCp/Al-6%Mg复合材料显微组织及腐蚀行为影响(英文)[J].稀有金属材料与工程,2016,45(12):3 085-3 088.
[8]ZHANG Y H,WU G H.Interface and thermal expansion of carbon fiber reinforced aluminum matrix composites[J].Transactions of Nonferrous Metals Society of China,2010,20(11):2 148-2 151.
[9]DAOUD A.Microstructure and tensile properties of 2014Al alloy reinforced with continuous carbon fibers manufactured by gas pressure infiltration[J].Materials Science and Engineering,2005,A391:114-120.
[10]YU K,DOLLHOPF V,KOCHENDORFER R.CVD SiC/Al composites produced by a vacuum suction casting process[J].Composites Science and Technology,1993,46(1):1-6.
[11]袁秀妹,余欢,王振军,等.纤维预热温度对2.5D-Cf/Al复合材料致密度和强度的影响[J].特种铸造及有色合金,2016,36(3):278-282.
[12]王家宁,李彩霞,张洋,等.温差挤压SiCp/AZ91D复合材料的组织和力学性能[J].特种铸造及有色合金,2018,38(8):902-906.
[13]金鹏,肖伯律,王全兆,等.热压烧结温度对SiC颗粒增强铝基复合材料微观组织及力学性能的影响[J].金属学报,2011,47(3):298-304.
[14]廖焕文,徐志锋,余欢.纤维预热温度对真空压力浸渗连续SiCf/Al复合材料致密度和力学性能的影响[J].中国有色金属学报,2014,24(9):2 264-2 271.
[2]迟长志,李世欣,张永胜.SiCp对铝基复合材料组织和磨损性能的影响[J].特种铸造及有色合金,2014,34(4),426-429.
[3]肖代红,陈康华,黄伯云.SiC颗粒增强铝基复合材料的显微组织与力学性能[J].特种铸造及有色合金,2007,27(7),508-511.
[4]王涛,赵宇新,付书红,等.连续纤维增强金属基复合材料的研制进展及关键问题[J].航空材料学报,2013,33(2):87-96.
[5]刘兵,彭超群,王日初,等.大飞机用铝合金的研究现状及展望[J].中国有色金属学报,2010,20(9):1 705-1 715.
[6]VANAROTTI M,SHRISHAIL P,SRIDHAR B R,et al.Surface modification of SiC reinforcements&its effects on mechanical properties of aluminium based MMC[J].Applied Mechanics&Materials,2014,446-447(1):93-97.
[7]崔霞,周贤良,欧阳德来,等.热处理对SiCp/Al-6%Mg复合材料显微组织及腐蚀行为影响(英文)[J].稀有金属材料与工程,2016,45(12):3 085-3 088.
[8]ZHANG Y H,WU G H.Interface and thermal expansion of carbon fiber reinforced aluminum matrix composites[J].Transactions of Nonferrous Metals Society of China,2010,20(11):2 148-2 151.
[9]DAOUD A.Microstructure and tensile properties of 2014Al alloy reinforced with continuous carbon fibers manufactured by gas pressure infiltration[J].Materials Science and Engineering,2005,A391:114-120.
[10]YU K,DOLLHOPF V,KOCHENDORFER R.CVD SiC/Al composites produced by a vacuum suction casting process[J].Composites Science and Technology,1993,46(1):1-6.
[11]袁秀妹,余欢,王振军,等.纤维预热温度对2.5D-Cf/Al复合材料致密度和强度的影响[J].特种铸造及有色合金,2016,36(3):278-282.
[12]王家宁,李彩霞,张洋,等.温差挤压SiCp/AZ91D复合材料的组织和力学性能[J].特种铸造及有色合金,2018,38(8):902-906.
[13]金鹏,肖伯律,王全兆,等.热压烧结温度对SiC颗粒增强铝基复合材料微观组织及力学性能的影响[J].金属学报,2011,47(3):298-304.
[14]廖焕文,徐志锋,余欢.纤维预热温度对真空压力浸渗连续SiCf/Al复合材料致密度和力学性能的影响[J].中国有色金属学报,2014,24(9):2 264-2 271.