Abstract—

This paper considers the main trends of structure formation in graded composite materials based on the Ti₃AlC₂ MAX phase on titanium under combustion and high-temperature deformation conditions in the unconfined self-propagating high-temperature synthesis compaction method. We demonstrate that a compact graded composite material can be obtained in tens of seconds in one processing step at relatively low pressures (50 MPa). Varying the delay time before applying pressure, we can control the structure and mechanical properties of the resulting composite material. The largest number of carbide grains are formed in the upper part of the material. As the titanium layer is approached, the number of such grains decreases, which is accompanied by an increase in the number of platelike MAX phase grains. We have studied mechanical characteristics of the synthesized materials: variation of microhardness along the height of the composite material and its modulus of elasticity and bending strength.

中文翻译：

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钛上Ti 3 AlC 2 MAX相的梯度复合材料结构形成的一般趋势

摘要—

本文考虑了基于Ti ₃ AlC _2的梯度复合材料结构形成的主要趋势。钛在燃烧和高温变形条件下的MAX相无约束自蔓延高温合成压实方法。我们证明了紧凑的梯度复合材料可以在相对较低的压力（50 MPa）的一个处理步骤中在数十秒内获得。改变施加压力之前的延迟时间，我们可以控制所得复合材料的结构和机械性能。在材料的上部形成数量最多的碳化物晶粒。随着接近钛层，这种晶粒的数量减少，这伴随着板状MAX相晶粒的数量增加。我们研究了合成材料的机械特性：