Advances in Manufacturing and Processing of Discontinuous Particle-Reinforced Titanium Matrix Composites (TMCs)

Titanium matrix composites (TMCsTitanium matrix composites (TMCs)) have a high specific strengthSpecific strength, specific stiffnessSpecific stiffness, high modulusModulus, corrosion resistanceCorrosion resistance, and high-temperature resistanceHigh temperature resistance, so they are widely used in aerospaceAerospace, weaponry, shipbuildingShipbuilding and other fieldsField. However, TMCsTitanium matrix composites (TMCs) are difficult to process using traditional technology, and the discontinuousDiscontinuous TMCsTitanium matrix composites (TMCs) mainly rely on in-situ synthesisIn-situ synthesis technology to prepare. This chapter introduces the main preparation technologies of discontinuousDiscontinuous particle-reinforced TMCsTitanium matrix composites (TMCs), including the technologies of powder metallurgyPowder metallurgy (PM), mechanical alloyingMechanical alloying (MA), self-propagating high-temperature synthesisSelf-propagating high-temperature synthesis (SHS), and rapid solidification processing (RSPRapid solidification processing (RSP)). In additive manufacturingAdditive manufacturing of TMCsTitanium matrix composites (TMCs), selective laser melting (SLMSelective laser melting (SLM)) can prepare mixed ex-situEx-situ/in-situIn-situ reinforced TMCsTitanium matrix composites (TMCs), which can realize the rapid and near-final forming of high-performancePerformance complexComplex parts. Direct laser deposition (DLDDirect laser deposition (DLD)) can be used to prepare in-situIn-situ reinforced TMCsTitanium matrix composites (TMCs), which provides new possibilities for the preparation of TMCsTitanium matrix composites (TMCs). TMCsTitanium matrix composites (TMCs) are processed by heat treatmentHeat treatment or electropulsing treatment (EPT)Electro-pulsing treatment (EPT), which can modify and optimize their microstructure. By modifying the structureStructure and the phasePhase content of TMCsTitanium matrix composites (TMCs), the performancePerformance of TMCsTitanium matrix composites (TMCs) can be improved.