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Mechanical properties of fine grained superalloy K4169 with addition of refiners 被引量:2
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作者 黄太文 刘林 +2 位作者 杨爱民 熊玉华 张蓉 《中国有色金属学会会刊:英文版》 CSCD 2005年第2期280-285,共6页
Grain refinement of superalloy K4169 was achieved by adding refiners into the alloy melt and their effects on the mechanical properties were investigated. The tensile properties at room temperature and 700 ℃ and low ... Grain refinement of superalloy K4169 was achieved by adding refiners into the alloy melt and their effects on the mechanical properties were investigated. The tensile properties at room temperature and 700 ℃ and low cycle fatigue properties at room temperature were compared for both conventional and fine grained test bars. The results indicate that the rupture strength, yield strength, elongation and reduction of area for refined grains are all much superior to those for coarse ones. Whereas the elongation and reduction of area of fine grained samples decrease at 700 ℃. Low cycle fatigue properties of samples with refined grains at room temperature are improved significantly. In addition, the degree of dispersion of low cycle fatigue data of samples with refined grains is diminished. 展开更多
关键词 K4169超合金 颗粒精炼 精炼机 循环疲劳性质 柔韧性
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