SiC含量对SiCp/2009Al复合材料微观组织及力学性能的影响

doi:10.13251/j.issn.0254-6051.2024.06.031

金属热处理 ›› 2024, Vol. 49 ›› Issue (6): 190-197.DOI: 10.13251/j.issn.0254-6051.2024.06.031

SiC含量对SiC_p/2009Al复合材料微观组织及力学性能的影响

肖治同^1,5, 王方明², 颜泽华³, 张勇², 曹振^1,4, 呼怀刚⁵, 李炯利^1,4, 王旭东^1,4

1.北京石墨烯技术研究院有限公司, 北京 100094;
2.北京石油机械有限公司, 北京 102206;
3.哈尔滨理工大学荣成学院, 山东威海 264300;
4.中国航发北京航空材料研究院, 北京 100095;
5.油气钻完井技术国家工程研究中心, 北京 102206

收稿日期:2023-12-22 修回日期:2024-04-18 出版日期:2024-06-25 发布日期:2024-07-29
通讯作者: 曹振(1989—),男,高级工程师,硕士,E-mail:caozhen917@163.com
作者简介:肖治同(1997—),男,助理工程师,硕士,主要研究方向为金属基复合材料制备及表面改性技术,E-mail:xiaozt419@163.com。
基金资助:
油气钻完井技术国家工程研究中心科学研究基金(NERCDCT202323)

Effect of SiC content on microstructure and mechanical properties of SiC_p/2009Al composites

Xiao Zhitong^1,5, Wang Fangming², Yan Zehua³, Zhang Yong², Cao Zhen^1,4, Hu Huaigang⁵, Li Jiongli^1,4, Wang Xudong^1,4

1. Beijing Institute of Graphene Technology, Beijing 100094, China;
2. Beijing Petroleum Machinery Co., Ltd., Beijing 102206, China;
3. Harbin University of Science and Technology Rongcheng Campus, Weihai Shandong 264300, China;
4. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China;
5. National Engineering Research Center for Oil & Gas Drilling and Completion Technology, Beijing 102206, China

Received:2023-12-22 Revised:2024-04-18 Online:2024-06-25 Published:2024-07-29

摘要/Abstract

摘要： 通过在2009Al合金中引入不同质量分数(0、1%、3%、5%)的SiC颗粒,采用热等静压工艺制备了SiC_p/2009Al复合材料,随后进行了热挤压和固溶时效处理,研究了工艺过程对该复合材料组织与性能的影响。结果表明,采用热等静压工艺能够制备出晶粒均匀且SiC分散均匀的复合材料,SiC颗粒与Al基体界面结合良好;经挤压工艺后,复合材料的微观组织明显改变,增强体SiC颗粒破碎并细化,当SiC含量较低(≤3%)时SiC颗粒沿挤压流均匀分布在基体中,SiC较高(＞3%)时,SiC颗粒存在轻微的团聚现象。经固溶时效处理后,基体晶粒尺寸的均匀性提高,析出的第二相细小均匀弥散分布在基体中。通过对SiC_p/2009Al复合材料进行热挤压及固溶时效处理可以得到较优的综合力学性能。当引入质量分数为3%的SiC时,复合材料的力学性能更佳,其抗拉强度为492.7 MPa,屈服强度为400.9 MPa,断后伸长率为12.7%,硬度为131 HBW,在室温下兼具较好的耐磨性能。

关键词: SiC_p/2009Al复合材料, 热等静压, 力学性能, 耐磨性能

Abstract: SiC_p/2009Al composites were prepared by introducing SiC particles with different mass fractions (0, 1%, 3% and 5%) into 2009Al alloy by hot isostatic pressing process, followed by hot extrusion, solution and aging treatment, and the effects of the process on microstructure and properties of the composites were investigated. The results show that the composites with uniform grain and uniform dispersion of SiC can be prepared by the hot isostatic pressing process, and the SiC particles are well bonded with the interface of Al matrix. the microstructure of the composites is obviously changed by the extrusion process, the reinforcing SiC particles are broken and refined and homogeneously distributed along the extruded flow in the matrix when the content of SiC is lower (≤3%), while when the SiC content is higher (>3%), there is a slight agglomeration of SiC particles. After solution and aging treatment, the uniformity of matrix grain size is improved, and the precipitated second phase is fine and uniformly dispersed in the matrix. By hot extrusion, solution and aging treatment, the SiC_p/2009Al composites can obtain superior comprehensive mechanical properties. When 3% SiC is introduced, the preferable mechanical properties of the composites are obtained with tensile strength of 492.7 MPa, yield strength of 400.9 MPa, elongation after fracture of 12.7%, hardness of 131 HBW, and a good wear resistance at room temperature.

Key words: SiC_p/2009Al composites, hot isostatic pressure, mechanical properties, wear resistance

中图分类号:

TG146.2

肖治同, 王方明, 颜泽华, 张勇, 曹振, 呼怀刚, 李炯利, 王旭东. SiC含量对SiC_p/2009Al复合材料微观组织及力学性能的影响[J]. 金属热处理, 2024, 49(6): 190-197.

Xiao Zhitong, Wang Fangming, Yan Zehua, Zhang Yong, Cao Zhen, Hu Huaigang, Li Jiongli, Wang Xudong. Effect of SiC content on microstructure and mechanical properties of SiC_p/2009Al composites[J]. Heat Treatment of Metals, 2024, 49(6): 190-197.

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SiC含量对SiC_p/2009Al复合材料微观组织及力学性能的影响

Effect of SiC content on microstructure and mechanical properties of SiC_p/2009Al composites

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SiC含量对SiCp/2009Al复合材料微观组织及力学性能的影响

Effect of SiC content on microstructure and mechanical properties of SiCp/2009Al composites

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SiC含量对SiC_p/2009Al复合材料微观组织及力学性能的影响

Effect of SiC content on microstructure and mechanical properties of SiC_p/2009Al composites