Hu Xianlei, Xie Qincheng, Yuan Yi, Zhi Ying, Liu Xianghua
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110167, China.
Suzhou Dongbaohaixing Metal Material Science and Technology Co., Ltd., Suzhou 215625, China.
Materials (Basel). 2023 Aug 31;16(17):5986. doi: 10.3390/ma16175986.
SiC particle-reinforced Ti/Al/Ti clad plates were successfully fabricated by the powder-in-tube method. The surface micrography, element diffusion, peeling strength and tensile property of clad plates were studied after annealing and cold rolling. The experimental results show that 6 wt.% is optimal. The presence of SiC particles has been seen to significantly enhance the diffusion of Ti and Al elements. Additionally, it has been observed that the diffusion width of the intermetallic compound (IMC) increases as the size of SiC particles grows. However, it is worth noting that the average of Ti/Al-SiC/Ti clad plates initially increases and subsequently falls. The optimized diffusion thickness of the Ti/Al-SiC/Ti clad plate's IMC layer determined via the powder-in-tube method is approximately 4.5 μm. The 1 μm SiC-reinforced Ti/Al/Ti clad plate can obtain the best mechanical properties after annealing at 500 °C and further hot rolling, and the peeling strength, ultimate tensile strength and elongation are 31.5 N/mm, 305 MPa and 26%, respectively. The efficacy of Ti/Al-SiC/Ti clad plates in delivering exceptional performance is substantiated by the analysis of peeling surfaces, peeling tests and tensile testing, which collectively demonstrate the presence of compact and homogenous intermetallic compounds.
采用包套粉末法成功制备了碳化硅颗粒增强Ti/Al/Ti复合板。对复合板退火和冷轧后的表面微观结构、元素扩散、结合强度和拉伸性能进行了研究。实验结果表明，6 wt.%为最佳含量。已观察到碳化硅颗粒的存在显著增强了钛和铝元素的扩散。此外，还观察到金属间化合物（IMC）的扩散宽度随着碳化硅颗粒尺寸的增大而增加。然而，值得注意的是，Ti/Al-SiC/Ti复合板的平均值最初增加，随后下降。通过包套粉末法确定的Ti/Al-SiC/Ti复合板IMC层的优化扩散厚度约为4.5μm。1μm碳化硅增强的Ti/Al/Ti复合板在500℃退火并进一步热轧后可获得最佳力学性能，结合强度、抗拉强度和伸长率分别为31.5 N/mm、305 MPa和26%。对剥离表面、剥离试验和拉伸试验的分析证实了Ti/Al-SiC/Ti复合板具有优异的性能，这些分析共同表明存在致密且均匀的金属间化合物。
