| 李奎江,邹树梁,唐德文,肖畅飞,刘昌福.基于真空烧结的Al-B4C中子吸收材料的制备及性能研究[J].南华大学学报(自然科学版),2018,32(5):70~75.[LI Kuijiang,ZOU Shuliang,TANG Dewen,XIAO Changfei,LIU Changfu.Manufacture and Properties of Al-B4C Neutron Absorption MaterialsBased on Vacuum Sintering[J].Journal of University of South China(Science and Technology),2018,32(5):70~75.] |
| 基于真空烧结的Al-B4C中子吸收材料的制备及性能研究 |
| Manufacture and Properties of Al-B4C Neutron Absorption MaterialsBased on Vacuum Sintering |
| 投稿时间：2018-04-18 |
| DOI： |
| 中文关键词: Al-B4C复合材料 真空烧结 微观组织 力学性能 |
| 英文关键词:Al-B4C composite materials vacuum sintering microstructure mechanical properties |
| 基金项目:湖南省研究生科研创新资助项目(CX2017B526) |
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| 中文摘要: |
| B4C是一种常见的中子吸收材料,采用真空烧结的方法制备不同成分配比的Al-B4C复合材料,并对材料的微观组织,力学性能进行分析,研究结果表明:基体Al相和增强相B4C颗粒之间分布比较均匀,气孔裂纹等缺陷较少,复合材料抗拉强度,屈服强度,断后伸长率随着碳化硼含量的增加逐渐减小,复合材料的断裂方式既有B4C颗粒的解理断裂,也有铝基体的韧性撕裂,以B4C颗粒的断裂和拔出为主,是韧性断裂与脆性断裂综合作用的结果. |
| 英文摘要: |
| B4C is a common neutron absorbing material.In this paper,different Al-B4C composites were manufactured by vacuum sintering,and the microstructure and mechanical properties of the composites were analyzed.The results show that the distribution of the Al phase and the reinforcing phase B4C particles are relatively uniform.There are fewer defects such as blowhole and cracks.The tensile strength,yield strength and elongation after fracture of composites decrease with the increase of boron carbide content.The fracture modes of composites include not only the cleavage fracture of B4C particles,but also the ductile tearing of aluminum matrix,and the fracture and extraction of B4C particles,which is the result of the comprehensive action of ductile fracture and brittle fracture. |
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