Improving the elevated-temperature mechanical properties of AA3004 hot-rolled sheets by microalloying with Mo and optimizing the process route
The present work investigated the influence of Mo addition and thermomechanical process routes on microstructural evolution and elevated-temperature mechanical properties of Al–Mn–Mg 3004 alloys. Various combinations of heat treatment and hot rolling were applied to fabricate hot-rolled sheets. The...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-07-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422010328 |
| _version_ | 1817999871992397824 |
|---|---|
| author | K. Ma E.M. Elgallad Z.X. Chen B.L. Xiao X.-Grant Chen |
| author_facet | K. Ma E.M. Elgallad Z.X. Chen B.L. Xiao X.-Grant Chen |
| author_sort | K. Ma |
| collection | DOAJ |
| description | The present work investigated the influence of Mo addition and thermomechanical process routes on microstructural evolution and elevated-temperature mechanical properties of Al–Mn–Mg 3004 alloys. Various combinations of heat treatment and hot rolling were applied to fabricate hot-rolled sheets. The results revealed that microalloying with Mo and two-step heat treatment increased the number density and volume fraction of dispersoids and decreased the volume fractions of dispersoid-free zones. The different processing routes had important impacts on microstructural evolution. The alloys processed with heat treatment followed by hot rolling had finer and better distributions of dispersoids than those subjected to hot rolling prior to heat treatment. The former resulted in higher tensile strengths at room and elevated temperatures. Among all conditions, the Mo-containing alloy subjected to two-step heat treatment followed by hot rolling exhibited the highest elevated-temperature properties and reached a yield strength of 93 MPa at 300 °C. Both the base and Mo-containing alloys subjected to two-step heat treatment followed by hot rolling showed excellent thermal stabilities up to 350 °C and almost no significant change in yield strengths after thermal exposure at 300–350 °C for 100 h. |
| first_indexed | 2024-04-14T03:14:57Z |
| format | Article |
| id | doaj.art-6e3f91b959d24894987d9d70d216aaec |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-14T03:14:57Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-6e3f91b959d24894987d9d70d216aaec2022-12-22T02:15:31ZengElsevierJournal of Materials Research and Technology2238-78542022-07-011944894503Improving the elevated-temperature mechanical properties of AA3004 hot-rolled sheets by microalloying with Mo and optimizing the process routeK. Ma0E.M. Elgallad1Z.X. Chen2B.L. Xiao3X.-Grant Chen4Department of Applied Science, University of Québec at Chicoutimi, Saguenay, Québec G7H 2B1, Canada; Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Science, 72 Wenhua Road, Shenyang, 110016, ChinaDepartment of Applied Science, University of Québec at Chicoutimi, Saguenay, Québec G7H 2B1, Canada; Corresponding author.Department of Applied Science, University of Québec at Chicoutimi, Saguenay, Québec G7H 2B1, CanadaShi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Science, 72 Wenhua Road, Shenyang, 110016, ChinaDepartment of Applied Science, University of Québec at Chicoutimi, Saguenay, Québec G7H 2B1, Canada; Corresponding author.The present work investigated the influence of Mo addition and thermomechanical process routes on microstructural evolution and elevated-temperature mechanical properties of Al–Mn–Mg 3004 alloys. Various combinations of heat treatment and hot rolling were applied to fabricate hot-rolled sheets. The results revealed that microalloying with Mo and two-step heat treatment increased the number density and volume fraction of dispersoids and decreased the volume fractions of dispersoid-free zones. The different processing routes had important impacts on microstructural evolution. The alloys processed with heat treatment followed by hot rolling had finer and better distributions of dispersoids than those subjected to hot rolling prior to heat treatment. The former resulted in higher tensile strengths at room and elevated temperatures. Among all conditions, the Mo-containing alloy subjected to two-step heat treatment followed by hot rolling exhibited the highest elevated-temperature properties and reached a yield strength of 93 MPa at 300 °C. Both the base and Mo-containing alloys subjected to two-step heat treatment followed by hot rolling showed excellent thermal stabilities up to 350 °C and almost no significant change in yield strengths after thermal exposure at 300–350 °C for 100 h.http://www.sciencedirect.com/science/article/pii/S2238785422010328Al–Mn–Mg 3004 alloyMicrostructure evolutionElevated-temperature propertiesMo additionHot rolling |
| spellingShingle | K. Ma E.M. Elgallad Z.X. Chen B.L. Xiao X.-Grant Chen Improving the elevated-temperature mechanical properties of AA3004 hot-rolled sheets by microalloying with Mo and optimizing the process route Journal of Materials Research and Technology Al–Mn–Mg 3004 alloy Microstructure evolution Elevated-temperature properties Mo addition Hot rolling |
| title | Improving the elevated-temperature mechanical properties of AA3004 hot-rolled sheets by microalloying with Mo and optimizing the process route |
| title_full | Improving the elevated-temperature mechanical properties of AA3004 hot-rolled sheets by microalloying with Mo and optimizing the process route |
| title_fullStr | Improving the elevated-temperature mechanical properties of AA3004 hot-rolled sheets by microalloying with Mo and optimizing the process route |
| title_full_unstemmed | Improving the elevated-temperature mechanical properties of AA3004 hot-rolled sheets by microalloying with Mo and optimizing the process route |
| title_short | Improving the elevated-temperature mechanical properties of AA3004 hot-rolled sheets by microalloying with Mo and optimizing the process route |
| title_sort | improving the elevated temperature mechanical properties of aa3004 hot rolled sheets by microalloying with mo and optimizing the process route |
| topic | Al–Mn–Mg 3004 alloy Microstructure evolution Elevated-temperature properties Mo addition Hot rolling |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422010328 |
| work_keys_str_mv | AT kma improvingtheelevatedtemperaturemechanicalpropertiesofaa3004hotrolledsheetsbymicroalloyingwithmoandoptimizingtheprocessroute AT emelgallad improvingtheelevatedtemperaturemechanicalpropertiesofaa3004hotrolledsheetsbymicroalloyingwithmoandoptimizingtheprocessroute AT zxchen improvingtheelevatedtemperaturemechanicalpropertiesofaa3004hotrolledsheetsbymicroalloyingwithmoandoptimizingtheprocessroute AT blxiao improvingtheelevatedtemperaturemechanicalpropertiesofaa3004hotrolledsheetsbymicroalloyingwithmoandoptimizingtheprocessroute AT xgrantchen improvingtheelevatedtemperaturemechanicalpropertiesofaa3004hotrolledsheetsbymicroalloyingwithmoandoptimizingtheprocessroute |