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一、前言 K6是一种镍基铸造高温合金,相当美国牌号GMR—235D。这个合金作为航空涡轮发动机叶片材料仿制和运表己获成功。随着我国社会主义建设的发展,民用燃气轮机的制造正在兴起。在民用机组上、需要一档能在700—750℃下长期工作的动叶材料,国外这档材料大都采用铸造镍基合金Udimet—500。Udimet—500这个合金含18％的钴。钴是我国目前稀缺的合金元素,而K6合金不含钴,从过去研究得到的数据来看,K6合金综合性能比较好,因此我们想
First, the preface K6 is a nickel-based cast superalloy, the equivalent of the United States brand GMR-235D. This alloy has been successfully cloned and shipped as an aeronautic turbine engine blade material. With the development of socialist construction in our country, the manufacture of civilian gas turbines is on the rise. In civilian units, the need for a file can be long-term work in the 700-750 ℃ leaf material, foreign materials this file mostly cast nickel-based alloy Udimet-500. Udimet-500 This alloy contains 18% cobalt. Cobalt is currently the scarce alloying element in our country, but the K6 alloy does not contain cobalt. According to the data obtained in the past research, the comprehensive performance of K6 alloy is better, so we think