| INVESTIGATION ON THIN－WALL EFFECT OF A DIRECTIONALLY SOLIDIFIED SUPERALLOY BY USING TUBULAR SPECIMENS |
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| 作者姓名： | R.Z.Chen and H. W. Zhang |
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| 作者单位： | Beijing Institute of Aeronautical Materials，Beijing 100095， |
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| 摘 要： | ＩＮＶＥＳＴＩＧＡＴＩＯＮＯＮＴＨＩＮ－ＷＡＬＬＥＦＦＥＣＴＯＦＡＤＩＲＥＣＴＩＯＮＡＬＬＹＳＯＬＩＤＩＦＩＥＤＳＵＰＥＲＡＬＬＯＹＢＹＵＳＩＮＧＴＵＢＵＬＡＲＳＰＥＣＩＭＥＮＳＲ．Ｚ．ＣｈｅｎａｎｄＨ．Ｗ．Ｚｈａｎｇ（ＢｅｉｊｉｎｇＩｎｓｔｉｔｕｔ...
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| 收稿时间： | 1996-12-25 |
| 修稿时间： | 1996-12-25 |
INVESTIGATION ON THIN-WALL EFFECT OF A DIRECTIONALLY SOLIDIFIED SUPERALLOY BY USING TUBULAR SPECIMENS |
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| R.Z.Chen and H. W. Zhang.INVESTIGATION ON THIN-WALL EFFECT OF A DIRECTIONALLY SOLIDIFIED SUPERALLOY BY USING TUBULAR SPECIMENS[J].Acta Metallurgica Sinica(English Letters),1996,9(6):626-633. |
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| Authors: | RZChen and H W Zhang |
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| Abstract: | The thin-wall effect of DZ25G, a directionally solidified (DS) superalloy, has been studied by ustng tubular investment cast thin-wall specimens with shape and wall thickness near the air-cooled hollow blades.The results show that the stress-rupture properties of the thin-wall specimens (thickness 0.8, 1.2 and 1.6 mm) are equivalent to the standard ones (diameter 5 mm),i.e., under the experimental conditions in this study the alloy DZ25G has insignificant thin-wall effect. It is apparent that the resulte are different from previous work. In the paper the reasons resulting in the difference were discussion in terms of the specimen manufacture process and thus microstructure feature. |
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| Keywords: | DS superalloy thin-wall effect stress-rupture property miCrostructure |
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