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六十年代以来,苏联航空发动机获得了较快的进展,近年来又出现了高推重比燃气涡轮发动机,所选用的材料也有很大变化,下面仅就苏联航空燃气涡轮发动机用材情况,作一简要介绍。 一、轴向式压气机用材料 进气装置 根据进气装置所承受温度的高低,选择不同材料。例如,承受温度t≤250℃,选用硬铝板材;t≤500℃时,改用钛合金板材;t>500℃时,则选用1X18H9T不锈钢板材。 压气机盘 也是根据承受温度的高低和其它工作条件,选择不同的材料,经模锻和机械加工而成。承受温度在250℃以下的压气机盘,采用的材料是АК2、АК4-1、ВД17铝合
Since the 1960s, the Soviet aero-engine has made rapid progress. In recent years, the high-thrust-to-gravity ratio gas turbine engine has appeared. The selected materials have also undergone great changes. The following only makes a brief summary of the Soviet Union gas turbine engine materials Introduction. First, the axial compressor material intake device according to the height of the intake device to withstand the temperature, choose different materials. For example, to withstand the temperature t ≤ 250 ℃, the selection of hard aluminum plate; t ≤ 500 ℃, the use of titanium alloy plate; t> 500 ℃, the selection of 1X18H9T stainless steel plate. Compressor disc is also based on the temperature to withstand the level and other working conditions, choose different materials, by forging and machining. Bear the temperature below 250 ℃ compressor disk, the material used is АК2, АК4-1, ВД17 aluminum