Effect of aging treatment on L12 precipitated phase and mechanical properties of (FeNiCoCr)90Al5Ti5 high entropy alloy
The morphology and phase stability of precipitated phases are essential for regulating mechanical properties of alloys. The (FeNiCoCr)90Al5Ti5 high entropy alloy was prepared by low-speed ball milling and hot-press sintering method, and the effects of high-temperature (1150 ℃) and medium-temperature...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2024-04-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2023.000493 |
| _version_ | 1797205640747155456 |
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| author | BO Haiwa WANG Peijin AI Taotao |
| author_facet | BO Haiwa WANG Peijin AI Taotao |
| author_sort | BO Haiwa |
| collection | DOAJ |
| description | The morphology and phase stability of precipitated phases are essential for regulating mechanical properties of alloys. The (FeNiCoCr)90Al5Ti5 high entropy alloy was prepared by low-speed ball milling and hot-press sintering method, and the effects of high-temperature (1150 ℃) and medium-temperature (850 ℃) aging treatment on the types, morphology, distribution and mechanical properties of precipitated phases in the alloy were investigated. The results show that the compressive strain of the prepared alloy reaches 47%, and the yield strength and ultimate compressive strength are 948 MPa and 1684 MPa, respectively. The high strength is due to the strengthening effect of the L12 structure nano-precipitation phases within the crystal. After aging at 850 ℃ for 10 h, the L12 precipitated phases grow into equiaxed grains with a size exceeding 10 μm, and some of them transform into a thin lamellar HCP structure η phases, which leads to the decrease of the yield strength and ultimate compressive strength of the alloy. After aging at 1150 ℃ for 2 h, the intracrystalline L12 nano-precipitated phases completely redissolve, which leads to a drastic decrease in the yield strength and ultimate compressive strength of the alloy. |
| first_indexed | 2024-04-24T08:54:20Z |
| format | Article |
| id | doaj.art-708bf48234da4fc08025a2e7344f3a4e |
| institution | Directory Open Access Journal |
| issn | 1001-4381 |
| language | zho |
| last_indexed | 2024-04-24T08:54:20Z |
| publishDate | 2024-04-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-708bf48234da4fc08025a2e7344f3a4e2024-04-16T08:29:20ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812024-04-0152414615410.11868/j.issn.1001-4381.2023.00049320240415Effect of aging treatment on L12 precipitated phase and mechanical properties of (FeNiCoCr)90Al5Ti5 high entropy alloyBO Haiwa0WANG Peijin1AI Taotao2School of Materials Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, ChinaSchool of Materials Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, ChinaSchool of Materials Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, Shaanxi, ChinaThe morphology and phase stability of precipitated phases are essential for regulating mechanical properties of alloys. The (FeNiCoCr)90Al5Ti5 high entropy alloy was prepared by low-speed ball milling and hot-press sintering method, and the effects of high-temperature (1150 ℃) and medium-temperature (850 ℃) aging treatment on the types, morphology, distribution and mechanical properties of precipitated phases in the alloy were investigated. The results show that the compressive strain of the prepared alloy reaches 47%, and the yield strength and ultimate compressive strength are 948 MPa and 1684 MPa, respectively. The high strength is due to the strengthening effect of the L12 structure nano-precipitation phases within the crystal. After aging at 850 ℃ for 10 h, the L12 precipitated phases grow into equiaxed grains with a size exceeding 10 μm, and some of them transform into a thin lamellar HCP structure η phases, which leads to the decrease of the yield strength and ultimate compressive strength of the alloy. After aging at 1150 ℃ for 2 h, the intracrystalline L12 nano-precipitated phases completely redissolve, which leads to a drastic decrease in the yield strength and ultimate compressive strength of the alloy.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2023.000493high entropy alloyprecipitated phaseaging treatmentcompression property |
| spellingShingle | BO Haiwa WANG Peijin AI Taotao Effect of aging treatment on L12 precipitated phase and mechanical properties of (FeNiCoCr)90Al5Ti5 high entropy alloy Cailiao gongcheng high entropy alloy precipitated phase aging treatment compression property |
| title | Effect of aging treatment on L12 precipitated phase and mechanical properties of (FeNiCoCr)90Al5Ti5 high entropy alloy |
| title_full | Effect of aging treatment on L12 precipitated phase and mechanical properties of (FeNiCoCr)90Al5Ti5 high entropy alloy |
| title_fullStr | Effect of aging treatment on L12 precipitated phase and mechanical properties of (FeNiCoCr)90Al5Ti5 high entropy alloy |
| title_full_unstemmed | Effect of aging treatment on L12 precipitated phase and mechanical properties of (FeNiCoCr)90Al5Ti5 high entropy alloy |
| title_short | Effect of aging treatment on L12 precipitated phase and mechanical properties of (FeNiCoCr)90Al5Ti5 high entropy alloy |
| title_sort | effect of aging treatment on l12 precipitated phase and mechanical properties of fenicocr 90al5ti5 high entropy alloy |
| topic | high entropy alloy precipitated phase aging treatment compression property |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2023.000493 |
| work_keys_str_mv | AT bohaiwa effectofagingtreatmentonl12precipitatedphaseandmechanicalpropertiesoffenicocr90al5ti5highentropyalloy AT wangpeijin effectofagingtreatmentonl12precipitatedphaseandmechanicalpropertiesoffenicocr90al5ti5highentropyalloy AT aitaotao effectofagingtreatmentonl12precipitatedphaseandmechanicalpropertiesoffenicocr90al5ti5highentropyalloy |