采用定向凝固无余量精铸工艺，制造了接近于空心涡轮叶片的形状和壁厚的管状薄壁（l＝0.8－1.6mm）试样，研究了一种定向凝固高温合金的薄壁性能。结果表明，薄壁试样的持久性能与标准试样（直径5mm）相比没有明显的下降，说明在本试验条件下，该合金的薄壁效应不明显。从工艺因素和显微组织方面讨论了试验结果。
The thin-wall effect of a directionally solidified superalloy has been studied by using tubular hollow specimens (wall thickness l= 0.8, 1.2,1.6 mm) whose shape and thickness are similar to the hollow turbine blades made by the near-shape investigation cast procedure.The results show that stress-rupture properties of thin-wall specimens are not reduced remarkably comparing that of the standard ones (5 mm diamater), i.e., thin-wall effect of this alloy is not remarkable in this experiment. The results differing from that of previous works are discussed in term of cast process and microstructure.
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| [3] | |
| [4] | |
| [5] |
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