<正> 为了节省能源,国内外广泛开展了煤的流化床燃烧技术的研究。然而,流化床中埋管材料及其上面所焊鳍片材料耐高温磨蚀性能的提高,是推广这一技术的关键。采用共沉法或机械合金化方法已成功地制成氧化物弥散强化高温合金,不仅高温强度可以维持到合金的熔点附近,而且可以改善高温耐磨性,但这类合金制造工艺复杂、成本高,不适宜大量用于能源工业。向钢水中吹喷氧化物质点可以明显提高镇静钢的室温和高温强度,而且价
The microstructure and mechanical properties of 1Cr18Ni9Ti, FeCrAl andCr25Ni20SiMn alloys after injection of oxide particles have been determined. The results showthat the tensile strength and hardness at room temperature or high temperatures, the high temper-ature rupture strength as well as the oxidation-wear resistance at high temperatures of the alloysincrease owing to the injection.
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