Transactions of Materials and Heat Treatment

Title：Hot pressing sintering-hot extrusion compound method for SiCp/6061Al composites

Authors： Yuan Guosen Zhang Xiaocui Yang Tongsheng

Unit： Henan Institute of Technology Xinxiang Vocational and Technical College

KeyWords： hot pressing sintering hot extrusion compound method SiCp/6061Al composites fracture mechanism

ClassificationCode：TF124.5

year,vol(issue):pagenumber：2017,42(2):124-127

Abstract：

The SiC/6061Al composite containing 35% volume fraction of SiC was prepared by hot pressing sintering-hot extrusion compound method. Then, the microstructures and fracture of composite SiCp/6061Al were observed, and its density and tensile strength were examined. Furthermore, the influence of hot pressing sintering-hot extrusion compound method on SiCp/6061Al composite was researched. The results show that after the secondary forming of hot extrusion, reinforcement particles in the substrate are uniform distribution and parallel to the extrusion direction. The density is up to 98.09%, and its tensile strength reaches 248 MPa. The grain size of substrate is increasingly refined, much dislocation and sub-crystal structure are generated. Thus, the fracture mechanism of SiCp/6061Al composites after hot-extrusion is mainly composed of ductile fracture of 6061Al substrate and brittle rupture of SiC particles.

Funds：

河南省教学技术装备和实践教育研究项目（GZS139)

原国森（1981-），男，硕士，讲师

Reference：

［1］马睿.热处理对6061汽车板微观组织及性能的影响[J]. 热加工工艺，2015，44(24)：186-188.Ma R. Influence of heat treatment on microstructures and properties of 6061 automobile body sheet [J]. Hot Working Technology，2015，44(24)：186-188.
［2］马鸣图, 毕祥玉, 游江海, 等. 铝合金汽车板性能及其应用的研究进展[J]. 机械工程材料，2010，34(6)：1-5.Ma M T，Bi X Y，You J H，et al. Research progress of property and its application of aluminum alloy auto sheet [J]. Materials for Mechanical Engineering，2010，34(6)：1-5.
［3］陈洋, 许晓静，陆文俊，等. 固溶-大变形-时效下7085铝合金的晶间腐蚀和剥落腐蚀[J]. 稀有金属，2016，40(8)：745-750.Chen Y, Xu X J, Lu W J, et al. Intergranular corrosion and exfoliation corrosion of 7085 aluminum alloy under solution-large deformation-aging[J]. Chinese Journal of Rare Metals，2016，40(8)：745-750.
［4］Panigrhi K S，Jayaganthan R，Pancholi V. Effect of plastic deformation conditions on microstructural characteristics and mechanical properties of Al 6063 alloy [J]. Materials & Design，2009，30(6)：1894-1901.
［5］金鹏, 刘越, 李曙, 等. 碳化硅增强铝基复合材料的力学性能和断裂机制[J]. 材料研究学报，2009，23(2)：211-214.Jin P，Liu Y，Li S，et al. Effect of SiC particle size on tensile property and fracture behavior on particle reinforced aluminum metal matrix composites [J]. Chinese Journal of Materials Research，2009，23(2)：211-214.
［6］樊建中，石力开. 颗粒增强铝基复合材料研究与应用发展[J]. 宇航材料工艺，2012，42(1)：1-7.Fan J Z，Shi L K. Development and application of particulate reinforce aluminum matrix composites [J]. Aerospace Materials & Technology，2012，42(1)：1-7.
［7］李炯利, 王旭东, 王少华, 等. 纳米B4C颗粒增强纳米晶铝基复合材料的粉体形貌及微观[J]. 稀有金属，2016，40(6)：521-527.Li J L，Wang X D, Wang S H, et al. Morphology and microstructure of nanocrystalline aluminum-based composite powder reinforced with nanometric B4C particles [J]. Chinese Journal of Rare Metals，2016，40(6)：521-527.
［8］兖利鹏，王爱琴，谢敬佩，等. SiC含量对SiC/6061Al基复合材料性能的影响[J].粉末冶金工业，2013，23(5)：30-34.Yan L P，Wang A Q，Xie J P，et al. Effect of SiC addition on properties of SiC/6061Al composites [J]. Powder Metallurgy Industry，2013，23(5)：30-34.
［9］苏海, 高文理, 毛成, 等. 搅拌铸造 SiCp/2024 铝基复合材料的显微组织与力学性能[J]. 中国有色金属学报，2010，20(2)：217-225.Su H，Gao W L，Mao C，et al. Microstructures and mechanical properties of SiCp/2024 aluminum matrix composites synthesized by stir casting [J]. The Chinese Journal of Nonferrous Metals, 2010, 20(2)：217-225.
［10］张显峰，陆政，苏海，等. 热挤压变形对搅拌铸造SiCp/2024复合材料显微组织与力学性能的影响[J]. 塑性工程学报，2011，18(1)：58-90.Zhang X F，Lu Z，Su H，et al. Effect of hot extrusion deformation on microstructure and properties of SiCp/2024 composites by stir casting [J]. Journal of Plasticity Engineering，2011，18(1)：58-90.
［11］李正佳, 李贺军, 齐乐华, 等. 液态浸渗挤压制备(AlBO)w/Al复合材料缺陷分析[J]. 稀有金属材料与工程，2007，36(12)：2144-2147.Li Z J，Li H J，Qi Y H，et al. Defects analysis of (AlBO)w/Al composites[J]. Rare Metal Materials and Engineering，2007，36(12)：2144-2147.
［12］叶途明. 粉末冶金材料的温压行为及其致密化机理研究[D]. 长沙：中南大学，2007.Ye T M. Studies on Densification Mechanism and Warm Compaction Behavior of Powder Metallurgy Materials [D]. Changsha：Central South University，2007.
［13］游江, 刘允中，顾才鑫，等. 粉末热挤压SiCp/2024铝基复合材料的显微组织和力学性能[J]. 粉末冶金材料科学与工程，2014，19(1)：148-153.You J, Liu Y Z, Gu C X, et al. Microstructures and mechanical properties of SiCp/2024 aluminum matrix composites prepared by powder hot extrusion [J]. Materials Science and Engineering of Powder Metallurgy，2014，19(1)：148-153.
［14］Wang Z W, Song M, Sun C, et al. Effect of extrusion and particle volume fraction on the mechanical properties of SiC reinforced Al-Cu composites [J]. Materials Science and Engineering A, 2010，527(24-25)：6537-6542.
［15］孙超，沈茹娟，宋旼．有限元模拟SiC增强Al基复合材料的力学行为[J]. 中国有色金属学报，2012，22(2)：476-484.Sun C, Shen R J, Song M. Simulation of mechanical behaviors of SiC reinforced Al matrix composites by finite element method [J]. The Chinese Journal of Nonferrous Metals，2012，22(2)：476-484.

Service：

【This site has not yet opened Download Service】【Add Favorite】