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| Effect of heat treatment on properties of Al-B4C flats based on EDEM |
| CHEN Jin1，2, XIONG Ning1, GE Qi-lu1, WANG Tie-jun1，2, CAI Jing2 |
| 1Central Iron and Steel Research Institute, Beijing 100081, China，2Antai-heyuan Nuclear Energy Technology & Materials Co., Ltd., Beijing 100094, China Technology, Taiyuan 030024, China; |
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Abstract Aluminum based boron carbide plate (B4C volume fraction is 10.5%, the same below) was prepared by hot isostatic pressing. The density, hardness, room temperature mechanical properties of aluminum based boron carbide plate before and after heat treatment were tested, and the fracture structure was observed. The results show that after heat treatment, the density and hardness of the board are almost the same, and the heat treatment process has a significant effect on the mechanical properties of the board. After heating (500 ℃ × 3 h), water quenching and artificial aging (170 ℃ × 1 h), the tensile strength and elongation of the board are 365 MPa and 9.6% respectively, which are better than those of the board without heat treatment，the tensile strength increased by 89.1%, while the elongation decreased by 48.3%.
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Received: 02 July 2019
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2020, Vol. 30 
