Effect of deformation parameter on solution heat-treated microstructure of extruded Ni-based powder metallurgy superalloy
The effect of forging temperature, strain rate and strain state on grain microstructure during solid solution heat treatment of extruded Ni-based Powder Metallurgy Superalloy was studied based on the heat-compression experiment of double cone (DC) specimens. The corresponding relationship between fo...
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| Format: | Article |
| Language: | zho |
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Journal of Aeronautical Materials
2019-08-01
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| Series: | Journal of Aeronautical Materials |
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| Online Access: | http://jam.biam.ac.cn/CN/Y2019/V39/I4/19 |
| _version_ | 1818561756714237952 |
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| author | CHEN Yang TIAN Gaofeng YANG Jie CHEN Yingchun MA Guojun ZOU Jinwen |
| author_facet | CHEN Yang TIAN Gaofeng YANG Jie CHEN Yingchun MA Guojun ZOU Jinwen |
| author_sort | CHEN Yang |
| collection | DOAJ |
| description | The effect of forging temperature, strain rate and strain state on grain microstructure during solid solution heat treatment of extruded Ni-based Powder Metallurgy Superalloy was studied based on the heat-compression experiment of double cone (DC) specimens. The corresponding relationship between forging temperature, strain rate and grain microstructure in the range of forging temperature from 1060~1120 ℃ and strain rate from 0.003 s<sup>–1</sup> to 0.3 s<sup>–1</sup> was obtained. The results show that in the Double Cone compression experiment, at the same strain and temperature, the flow stress increases with the strain rate. And at the same strain rate, the higher the temperature, the lower the flow stress is. After supersolvus heat-treatment, at the same strain rate, the grain microstructure is inhomogeneous. And at the same forging temperature, the average grain size of the specimens under the three strain rates of three strain rate is 18~20 μm, but the specimens with higher strain rate clearly show inhomogeneous grain microstructures. In order to obtain the homogeneous grain structure, the more appropriate forging parameter is: the temperature of 1120 ℃, and the strain rate of 0.003 s<sup>–1</sup>. At the same forging temperature and strain rate, with the decrease of local strain, the average grain size is increased gradually. |
| first_indexed | 2024-12-14T00:54:58Z |
| format | Article |
| id | doaj.art-c15d08abd2354ed1845b9bfd55e46331 |
| institution | Directory Open Access Journal |
| issn | 1005-5053 1005-5053 |
| language | zho |
| last_indexed | 2024-12-14T00:54:58Z |
| publishDate | 2019-08-01 |
| publisher | Journal of Aeronautical Materials |
| record_format | Article |
| series | Journal of Aeronautical Materials |
| spelling | doaj.art-c15d08abd2354ed1845b9bfd55e463312022-12-21T23:23:37ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50531005-50532019-08-01394192510.11868/j.issn.1005-5053.2019.000049201904000049Effect of deformation parameter on solution heat-treated microstructure of extruded Ni-based powder metallurgy superalloyCHEN Yang0TIAN Gaofeng1YANG Jie2CHEN Yingchun3MA Guojun4ZOU Jinwen5Science and Technology on Advanced High Temperature Structural Materials Laboratory, AEEC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaScience and Technology on Advanced High Temperature Structural Materials Laboratory, AEEC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaScience and Technology on Advanced High Temperature Structural Materials Laboratory, AEEC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaGuobiao（Beijing）Testing & Certification Co., Ltd., Beijing 100088, ChinaScience and Technology on Advanced High Temperature Structural Materials Laboratory, AEEC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaScience and Technology on Advanced High Temperature Structural Materials Laboratory, AEEC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaThe effect of forging temperature, strain rate and strain state on grain microstructure during solid solution heat treatment of extruded Ni-based Powder Metallurgy Superalloy was studied based on the heat-compression experiment of double cone (DC) specimens. The corresponding relationship between forging temperature, strain rate and grain microstructure in the range of forging temperature from 1060~1120 ℃ and strain rate from 0.003 s<sup>–1</sup> to 0.3 s<sup>–1</sup> was obtained. The results show that in the Double Cone compression experiment, at the same strain and temperature, the flow stress increases with the strain rate. And at the same strain rate, the higher the temperature, the lower the flow stress is. After supersolvus heat-treatment, at the same strain rate, the grain microstructure is inhomogeneous. And at the same forging temperature, the average grain size of the specimens under the three strain rates of three strain rate is 18~20 μm, but the specimens with higher strain rate clearly show inhomogeneous grain microstructures. In order to obtain the homogeneous grain structure, the more appropriate forging parameter is: the temperature of 1120 ℃, and the strain rate of 0.003 s<sup>–1</sup>. At the same forging temperature and strain rate, with the decrease of local strain, the average grain size is increased gradually.http://jam.biam.ac.cn/CN/Y2019/V39/I4/19Nickel-based P/M superalloydouble-cone compressionforging temperaturestrain rategrain microstructure |
| spellingShingle | CHEN Yang TIAN Gaofeng YANG Jie CHEN Yingchun MA Guojun ZOU Jinwen Effect of deformation parameter on solution heat-treated microstructure of extruded Ni-based powder metallurgy superalloy Journal of Aeronautical Materials Nickel-based P/M superalloy double-cone compression forging temperature strain rate grain microstructure |
| title | Effect of deformation parameter on solution heat-treated microstructure of extruded Ni-based powder metallurgy superalloy |
| title_full | Effect of deformation parameter on solution heat-treated microstructure of extruded Ni-based powder metallurgy superalloy |
| title_fullStr | Effect of deformation parameter on solution heat-treated microstructure of extruded Ni-based powder metallurgy superalloy |
| title_full_unstemmed | Effect of deformation parameter on solution heat-treated microstructure of extruded Ni-based powder metallurgy superalloy |
| title_short | Effect of deformation parameter on solution heat-treated microstructure of extruded Ni-based powder metallurgy superalloy |
| title_sort | effect of deformation parameter on solution heat treated microstructure of extruded ni based powder metallurgy superalloy |
| topic | Nickel-based P/M superalloy double-cone compression forging temperature strain rate grain microstructure |
| url | http://jam.biam.ac.cn/CN/Y2019/V39/I4/19 |
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