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一、前言 GH302合金是以Fe-Ni-Cr为基的高温合金,可以用作工作温度为800℃的燃气轮机叶片。对该合金的锻造性能必须加以研究。以便在锻造叶片时能够有所依据,制订合理的锻造工艺,顺利地进行锻造。 对GH302合金的塑性,用不同的方法进行试验。如塑性顶锻、高温拉伸和高温冲击等,这些试验都得到相同的结果。此外,还对材料的原始状态也进行一定的比较;试验结果证明,合金的塑性不仅与变形温度有关。而
I. Introduction GH302 alloy is a Fe-Ni-Cr based superalloy and can be used as a gas turbine blade with operating temperature of 800 ℃. Forging properties of the alloy must be studied. In order to be able to have some basis for forging blades, to develop a reasonable forging process, smooth forging. Plasticity of GH302 alloy, using different methods for testing. Such as plastic upsetting, high temperature tensile and high temperature impact, these tests have been the same result. In addition, the original state of the material is also compared to some extent. The experimental results show that the plasticity of the alloy is not only related to the deformation temperature. and