一种定向凝固高温合金的薄壁效应研究

张强; 黄朝晖; 仝建民

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一种定向凝固高温合金的薄壁效应研究
Thin-walled Effects of a New Directionally Solidified Superalloy
2005年第5期页码：260-261
纸质出版日期： 2005 ，
DOI：

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[1]张强,黄朝晖,仝建民.一种定向凝固高温合金的薄壁效应研究[J].特种铸造及有色合金,2005(05):260-261+253.

Zhang Qiang 1 Huang Zhaohui 1 Tong Jianmin 2. Thin-walled Effects of a New Directionally Solidified Superalloy[J]. Special Casting & Nonferrous Alloys, 2005,(5):260-261.
[1]张强,黄朝晖,仝建民.一种定向凝固高温合金的薄壁效应研究[J].特种铸造及有色合金,2005(05):260-261+253. DOI：

Zhang Qiang 1 Huang Zhaohui 1 Tong Jianmin 2. Thin-walled Effects of a New Directionally Solidified Superalloy[J]. Special Casting & Nonferrous Alloys, 2005,(5):260-261. DOI：

摘要

采用定向凝固无余量精铸工艺

制造接近于空心涡轮叶片壁厚的管状薄壁试样（δ=1 .0～1 .4mm）

研究了一种新型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）相比无明显下降

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。

Abstract

The thin-walled effects of a new directionally solidified superalloy were investigated aiming at tubular hollow specimens with wall thickness of 1.0

1.2

1.4 mm similar to the hollow blades made by the net-shape investment casting.The results showed that the stress-rupture of the thin-walled specimens can not be obviously reduced by comparing with that of the standard ones with the diameters of 5mm

indicating the alloy has no obvious thin-walled effects for the experiment condition.The experimental results were analyzed from the view of processing factors and microstructure.