Microstructure, wear behavior and surface hardening of austempered ductile iron
Austempered ductile iron has been considered as a substitution to replace conventional steel castings, steel forgings and even aluminum in many applications. Its excellent mechanical properties are mainly attributed to its unique ausferritic structure containing acicular ferrite and carbon saturated...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-09-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785420314770 |
| _version_ | 1818879110502416384 |
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| author | Bingxu Wang Feng Qiu Gary C. Barber Yuming Pan Weiwei Cui Rui Wang |
| author_facet | Bingxu Wang Feng Qiu Gary C. Barber Yuming Pan Weiwei Cui Rui Wang |
| author_sort | Bingxu Wang |
| collection | DOAJ |
| description | Austempered ductile iron has been considered as a substitution to replace conventional steel castings, steel forgings and even aluminum in many applications. Its excellent mechanical properties are mainly attributed to its unique ausferritic structure containing acicular ferrite and carbon saturated austenite. Some ADI components such as camshaft and engine valve commonly experience surface contact and relative motion under external load and pressure. Outstanding wear resistance of ADI is required to ensure the satisfactory working performance and service life of these key components. In order to meet the advanced requirements of mechanical properties and wear behavior of ADI, a dual-step austempering process and additional surface hardening treatments are suggested to be utilized. In this review, conventional single-step austempering process and corresponding ausferritic structure are introduced. Second, the positive effects of a novel dual-step austempering process on microstructure and mechanical properties of ADI are provided. Next, wear behavior of single-step and dual-step ADIs and wear mechanisms are discussed. Then, studies regarding the applications of surface hardening treatments on wear resistance of ADI are reviewed. Finally, a summary and expectations are discussed. The information presented in this paper would be beneficial to future studies and applications for any grade of ADI. |
| first_indexed | 2024-12-19T14:24:52Z |
| format | Article |
| id | doaj.art-86b6cdc0219c43e3a0624b950dd249f1 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-19T14:24:52Z |
| publishDate | 2020-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-86b6cdc0219c43e3a0624b950dd249f12022-12-21T20:17:39ZengElsevierJournal of Materials Research and Technology2238-78542020-09-019598389855Microstructure, wear behavior and surface hardening of austempered ductile ironBingxu Wang0Feng Qiu1Gary C. Barber2Yuming Pan3Weiwei Cui4Rui Wang5Faculty of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310018, PR China; Automotive Tribology Center, Department of Mechanical Engineering, School of Engineering and Computer Science, Oakland University, Rochester, MI, 48309, USAKey Laboratory of Automobile Materials, Department of Materials Science and Engineering, Jilin University, Changchun, Jilin, 130025, PR China; Automotive Tribology Center, Department of Mechanical Engineering, School of Engineering and Computer Science, Oakland University, Rochester, MI, 48309, USA; Corresponding author.Automotive Tribology Center, Department of Mechanical Engineering, School of Engineering and Computer Science, Oakland University, Rochester, MI, 48309, USAAutomotive Tribology Center, Department of Mechanical Engineering, School of Engineering and Computer Science, Oakland University, Rochester, MI, 48309, USAFaculty of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310018, PR ChinaCollege of Modern Science and Technology, China Jiliang University, Hangzhou, Zhejiang, 310018, PR ChinaAustempered ductile iron has been considered as a substitution to replace conventional steel castings, steel forgings and even aluminum in many applications. Its excellent mechanical properties are mainly attributed to its unique ausferritic structure containing acicular ferrite and carbon saturated austenite. Some ADI components such as camshaft and engine valve commonly experience surface contact and relative motion under external load and pressure. Outstanding wear resistance of ADI is required to ensure the satisfactory working performance and service life of these key components. In order to meet the advanced requirements of mechanical properties and wear behavior of ADI, a dual-step austempering process and additional surface hardening treatments are suggested to be utilized. In this review, conventional single-step austempering process and corresponding ausferritic structure are introduced. Second, the positive effects of a novel dual-step austempering process on microstructure and mechanical properties of ADI are provided. Next, wear behavior of single-step and dual-step ADIs and wear mechanisms are discussed. Then, studies regarding the applications of surface hardening treatments on wear resistance of ADI are reviewed. Finally, a summary and expectations are discussed. The information presented in this paper would be beneficial to future studies and applications for any grade of ADI.http://www.sciencedirect.com/science/article/pii/S2238785420314770Austempered ductile ironAusferriteSingle-step ADIDual-step ADIWear resistanceSurface hardening treatments |
| spellingShingle | Bingxu Wang Feng Qiu Gary C. Barber Yuming Pan Weiwei Cui Rui Wang Microstructure, wear behavior and surface hardening of austempered ductile iron Journal of Materials Research and Technology Austempered ductile iron Ausferrite Single-step ADI Dual-step ADI Wear resistance Surface hardening treatments |
| title | Microstructure, wear behavior and surface hardening of austempered ductile iron |
| title_full | Microstructure, wear behavior and surface hardening of austempered ductile iron |
| title_fullStr | Microstructure, wear behavior and surface hardening of austempered ductile iron |
| title_full_unstemmed | Microstructure, wear behavior and surface hardening of austempered ductile iron |
| title_short | Microstructure, wear behavior and surface hardening of austempered ductile iron |
| title_sort | microstructure wear behavior and surface hardening of austempered ductile iron |
| topic | Austempered ductile iron Ausferrite Single-step ADI Dual-step ADI Wear resistance Surface hardening treatments |
| url | http://www.sciencedirect.com/science/article/pii/S2238785420314770 |
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