Effect of Hot-isostatic Pressing on Microstructure and Mechanical Properties of Second Generation Single Crystal Superalloy DD6
Effects of the hot-isostatic pressing (HIP) temperature (1280,1300,1320℃) on microstructures and mechanical properties of a second generation single crystal superalloy DD6 were investigated. The results show that the HIP treatment significantly decrease the cast porosity number of DD6 compared with...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2016-10-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.10.009 |
| _version_ | 1797964990109450240 |
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| author | GUO Hui-ming ZHAO Yun-song ZHENG Shuai XU Jian-wei ZHANG Jian LUO Yu-shi DONG Jian-xin |
| author_facet | GUO Hui-ming ZHAO Yun-song ZHENG Shuai XU Jian-wei ZHANG Jian LUO Yu-shi DONG Jian-xin |
| author_sort | GUO Hui-ming |
| collection | DOAJ |
| description | Effects of the hot-isostatic pressing (HIP) temperature (1280,1300,1320℃) on microstructures and mechanical properties of a second generation single crystal superalloy DD6 were investigated. The results show that the HIP treatment significantly decrease the cast porosity number of DD6 compared with standard treated specimens. Especially, the cast porosity volume fraction is deceased from 0.31% to 0.04% after the HIP treatment of 1300℃/100MPa, 4h. The cast eutectic volume fractions are remarkably reduced with increasing HIP temperature. The HIP treatments nearly unchanged the creep lives, While they greatly promote the low cycle fatigue lives. The elimination of cast microspores using the HIP treatment of 1300℃/100MPa, 4h result in the inhibition of crack initiation during fatigue and improve the low cycle fatigue lives one order of magnitude larger than that after standard heat treatment. |
| first_indexed | 2024-04-11T01:52:08Z |
| format | Article |
| id | doaj.art-87277091f881453abda7fd176f1b067f |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T01:52:08Z |
| publishDate | 2016-10-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-87277091f881453abda7fd176f1b067f2023-01-03T06:08:15ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812016-10-014410606710.11868/j.issn.1001-4381.2016.10.00920161009Effect of Hot-isostatic Pressing on Microstructure and Mechanical Properties of Second Generation Single Crystal Superalloy DD6GUO Hui-ming0ZHAO Yun-song1ZHENG Shuai2XU Jian-wei3ZHANG Jian4LUO Yu-shi5DONG Jian-xin6Key Laboratory of Advanced High Temperature Structural Materials, Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaKey Laboratory of Advanced High Temperature Structural Materials, Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaKey Laboratory of Advanced High Temperature Structural Materials, Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaKey Laboratory of Advanced High Temperature Structural Materials, Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaKey Laboratory of Advanced High Temperature Structural Materials, Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaKey Laboratory of Advanced High Temperature Structural Materials, Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaEffects of the hot-isostatic pressing (HIP) temperature (1280,1300,1320℃) on microstructures and mechanical properties of a second generation single crystal superalloy DD6 were investigated. The results show that the HIP treatment significantly decrease the cast porosity number of DD6 compared with standard treated specimens. Especially, the cast porosity volume fraction is deceased from 0.31% to 0.04% after the HIP treatment of 1300℃/100MPa, 4h. The cast eutectic volume fractions are remarkably reduced with increasing HIP temperature. The HIP treatments nearly unchanged the creep lives, While they greatly promote the low cycle fatigue lives. The elimination of cast microspores using the HIP treatment of 1300℃/100MPa, 4h result in the inhibition of crack initiation during fatigue and improve the low cycle fatigue lives one order of magnitude larger than that after standard heat treatment.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.10.009hot-isostatic pressingsingle crystal superalloyporositymechanical property |
| spellingShingle | GUO Hui-ming ZHAO Yun-song ZHENG Shuai XU Jian-wei ZHANG Jian LUO Yu-shi DONG Jian-xin Effect of Hot-isostatic Pressing on Microstructure and Mechanical Properties of Second Generation Single Crystal Superalloy DD6 Cailiao gongcheng hot-isostatic pressing single crystal superalloy porosity mechanical property |
| title | Effect of Hot-isostatic Pressing on Microstructure and Mechanical Properties of Second Generation Single Crystal Superalloy DD6 |
| title_full | Effect of Hot-isostatic Pressing on Microstructure and Mechanical Properties of Second Generation Single Crystal Superalloy DD6 |
| title_fullStr | Effect of Hot-isostatic Pressing on Microstructure and Mechanical Properties of Second Generation Single Crystal Superalloy DD6 |
| title_full_unstemmed | Effect of Hot-isostatic Pressing on Microstructure and Mechanical Properties of Second Generation Single Crystal Superalloy DD6 |
| title_short | Effect of Hot-isostatic Pressing on Microstructure and Mechanical Properties of Second Generation Single Crystal Superalloy DD6 |
| title_sort | effect of hot isostatic pressing on microstructure and mechanical properties of second generation single crystal superalloy dd6 |
| topic | hot-isostatic pressing single crystal superalloy porosity mechanical property |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.10.009 |
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