A flame-retardant graphene titanium-aluminum matrix composite material and preparation method thereof

Abstract

The invention belongs to the technical field of titanium alloy materials, and relates to a flame-retardant graphene titanium-aluminum-based composite material and a preparation method. The composite material is prepared from the following components in percentage by mass: 0.01 to 1 percent of graphene oxide and a titanium and aluminum compound. By adoption of a method of combining temperature-controlled mechanical stirring, vacuumizing treatment, hot isostatic pressing and the like, interface bonding characteristics of graphene oxide and titanium and aluminum compound mixed powder are improved, and the bulk density and the subsequent forming property of the mixed powder are improved; furthermore, the graphene oxide is basically decomposed to form graphene which is uniformly dispersed, so that the excellent mechanical property and the physical and chemical properties of the graphene are fully exerted; the flame retardant property of the obtained composite material is twice that of a common high-temperature titanium alloy or above, and the heat resistance is higher; and a brand-new technical scheme is provided for solving titanium fire of an aero-engine. The flame-retardant graphenetitanium-aluminum-based composite material is a novel material concept; a prepration process is short, can accurately control parameters, and is suitable for batch preparation.

Description

technical field

[0001] The invention belongs to the technical field of titanium alloy materials, and relates to a titanium-based composite material and a preparation method, in particular to a flame-retardant graphene titanium-aluminum-based composite material and a preparation method. Background technique

[0002] The sharp contradiction between the high-performance advanced aero-engine's demand for increased titanium consumption and the increased tendency of titanium fires is prominent, resulting in frequent titanium fire accidents. Effectively preventing titanium fire and increasing the amount of titanium in the compressor is one of the major problems facing advanced aero-engine technology at present and in the future.

[0003] Titanium-aluminum compound materials have become one of the most potential materials for high-temperature structural applications of advanced aero-engines due to their high creep resistance and high flame retardancy. They are used for key component...