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Jiang P, Liu D, Zou H, Liu J, Wu W, Pan H, Wang Z, Zhang Y, Dai G. Effect of Multi-Path Asynchronous Rolling Process on Microstructure and Mechanical Properties of ZK60 Magnesium Alloy. Materials (Basel) 2024; 17:1647. [PMID: 38612160 PMCID: PMC11012885 DOI: 10.3390/ma17071647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/28/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024]
Abstract
At the initial rolling temperature of 400 °C, ZK60 magnesium alloy was hot rolled by three different rolling paths with different roll speed ratios (RSR) of 1:1.15, 1:1.2, and 1:1.5, respectively. The effects of different rolling processes on the microstructure and mechanical properties of the alloy were studied. The microstructure, plasticity, strength, hardness, and texture intensity of rolled samples were analyzed in this work. The results show that the microstructure uniformity of the alloy under multi-path asynchronous rolling (MAR) is significantly improved, which improves the mechanical properties of the material to a certain extent, and effectively weakens the texture intensity of the basal plane and reduces the anisotropy. The amount of randomly oriented grains of ZK60 magnesium alloy rolled by the C-1.5 (path C combined with the RSR of 1:1.5) process are significantly increased, which significantly weakens the basal texture and improves the ductility of the alloy, greatly enhancing the processing and formability of ZK60 magnesium alloy.
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Affiliation(s)
- Peng Jiang
- School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China; (H.Z.); (J.L.); (W.W.); (H.P.); (Z.W.); (Y.Z.)
| | - Dawen Liu
- School of Mechanical Engineering, Changzhou University, Changzhou 213164, China;
| | - Haixin Zou
- School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China; (H.Z.); (J.L.); (W.W.); (H.P.); (Z.W.); (Y.Z.)
| | - Jianfu Liu
- School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China; (H.Z.); (J.L.); (W.W.); (H.P.); (Z.W.); (Y.Z.)
| | - Wangping Wu
- School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China; (H.Z.); (J.L.); (W.W.); (H.P.); (Z.W.); (Y.Z.)
| | - Haijun Pan
- School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China; (H.Z.); (J.L.); (W.W.); (H.P.); (Z.W.); (Y.Z.)
| | - Zhizhi Wang
- School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China; (H.Z.); (J.L.); (W.W.); (H.P.); (Z.W.); (Y.Z.)
| | - Yi Zhang
- School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China; (H.Z.); (J.L.); (W.W.); (H.P.); (Z.W.); (Y.Z.)
| | - Guohong Dai
- School of Mechanical Engineering and Rail Transit, Changzhou University, Changzhou 213164, China; (H.Z.); (J.L.); (W.W.); (H.P.); (Z.W.); (Y.Z.)
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Dziubinska A. Investigation of a New Screw Press Forming Process for Manufacturing Connectors from ZK60 Magnesium Alloy Preforms. Materials (Basel) 2023; 16:ma16093467. [PMID: 37176349 PMCID: PMC10179869 DOI: 10.3390/ma16093467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/20/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023]
Abstract
This article discusses a new technology of forming connector forgings from ZK60 magnesium alloy preforms by die forging on a screw press. The purpose of the study was to evaluate the feasibility of using preforms cast from the ZK60 magnesium alloy to forge a connector forging with improved mechanical properties compared to those obtained by casting. It also aimed to establish whether this new forging method has the potential for replacing the multi-stage forging process conducted on hydraulic presses used for high-strength Mg alloys. A numerical analysis of the proposed approach was performed by the finite element method, applying the popular DEFORM computer software for simulating forming processes. The numerical results confirmed that the developed method produces parts with the desired shape. The numerical results also provided information regarding the behavior of the workpiece's material and the screw press forging process, including the distributions of strains and temperatures, the Cockcroft-Latham damage criterion, and energy required to form connector forgings. The proposed screw press forging process for producing ZK60 alloy connectors from cast preforms was verified by experimental tests. The connector forgings produced from the ZK60 magnesium alloy were then subjected to qualitative tests.
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Affiliation(s)
- Anna Dziubinska
- Metal Forming and Casting Department, Faculty of Mechanical and Industrial Engineering, Warsaw University of Technology, Pl. Politechniki 1, 00-661 Warsaw, Poland
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Jian SY, Lin CF, Tsai TL, Wang PH, Chen CH, Lin SY, Tseng CC. In Vivo Degradation Behavior of Magnesium Alloy for Bone Implants with Improving Biological Activity, Mechanical Properties, and Corrosion Resistance. Int J Mol Sci 2023; 24. [PMID: 36675115 DOI: 10.3390/ijms24021602] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 01/15/2023] Open
Abstract
This study aimed to establish a surface modification technology for ZK60 magnesium alloy implants that can degrade uniformly over time and promote bone healing. It proposes a special micro-arc oxidation (MAO) treatment on ZK60 alloy that enables the composite electrolytes to create a coating with better corrosion resistance and solve the problems of uneven and excessive degradation. A magnesium alloy bone screw made in this way was able to promote the bone healing reaction after implantation in rabbits. Additionally, it was found that the MAO-treated samples could be sustained in simulated body-fluid solution, exhibiting excellent corrosion resistance and electrochemical stability. The Ca ions deposited in the MAO coating were not cytotoxic and were beneficial in enhancing bone healing after implantation.
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Feng X, Sun Y, Wan S, Chen G, He J. Effects of Aging Process on the Damping Performance of ZK60 Magnesium Alloys Prepared by Large Strain Rolling. Materials (Basel) 2020; 13:E5574. [PMID: 33297523 DOI: 10.3390/ma13235574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/02/2020] [Accepted: 12/04/2020] [Indexed: 11/24/2022]
Abstract
In this study, the effects of an aging treatment (T5) and a solution + aging treatment (T6) on the microstructure and damping properties of a ZK60 magnesium alloy prepared by large strain rolling (LSR) were studied by an optical microscope (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and dynamic thermomechanical analysis (DMA). The results showed that both the T5 and T6 processes had a great impact on the microstructure and damping properties of the ZK60 magnesium alloy. With the increase in aging time, the grain size was basically unchanged, and the amount of the second phase increased, resulting in a gradual decrease in the damping performance. However, compared with the damping performance of the un-aged ZK60 magnesium alloy, the damping performance of the 4 h-aged ZK60 magnesium alloy was enhanced. At the same aging time, the increase in the aging temperature promoted the precipitation of the second phase, thereby reducing the damping performance of the ZK60 magnesium alloy. It was found that the T6-treated ZK60 magnesium alloy had a larger grain size, which led to a better damping performance; in addition, the T6-treated ZK60 magnesium alloy exhibited a damping plateau, which was determined by the distribution and amount of the second phase.
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Zhou W, Hu Z, Wang T, Yang G, Xi W, Gan Y, Lu W, Hu J. Enhanced corrosion resistance and bioactivity of Mg alloy modified by Zn-doped nanowhisker hydroxyapatite coatings. Colloids Surf B Biointerfaces 2019; 186:110710. [PMID: 31838267 DOI: 10.1016/j.colsurfb.2019.110710] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 11/18/2019] [Accepted: 12/04/2019] [Indexed: 11/19/2022]
Abstract
In this work, Zn is doped into a hydroxyapatite coating on the surface of ZK60 magnesium alloys using a one-pot hydrothermal method to obtain a corrosion-resistant implant with abilities of osteogenic differentiation and bacterial inhibition. With the addition of Zn, the morphology changes with a nanowhisker structure appearing on the coating. Electrochemical measurements show that the nanowhisker hydroxyapatite coating provides a high corrosion resistance. Compared with hydroxyapatite coating, the nanowhisker coating not only effectively inhibits bacteria, but also promotes the adhesion and differentiation of rat bone marrow mesenchymal stem cells at appropriate Zn concentrations. In conclusion, a novel nanowhisker structure prepared by a single variable Zn doping can significantly improve the corrosion resistance and biological activity of hydroxyapatite coatings.
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Affiliation(s)
- Wuchao Zhou
- Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai 200011, China; Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine Jiangxi Province, Medical College of Nanchang University, Nanchang 330006, China
| | - Zhenrong Hu
- Weifang Medical University School of Stomatology, Weifang 261053, China
| | - Taolei Wang
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Guangzheng Yang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Weihong Xi
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine Jiangxi Province, Medical College of Nanchang University, Nanchang 330006, China
| | - Yanzi Gan
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine Jiangxi Province, Medical College of Nanchang University, Nanchang 330006, China
| | - Wei Lu
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China.
| | - Jingzhou Hu
- Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai 200011, China.
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Song Y, Wang M, Zong Y, He R, Jin J. Grain Refinement by Second Phase Particles under Applied Stress in ZK60 Mg Alloy with Y through Phase Field Simulation. Materials (Basel) 2018; 11:ma11101903. [PMID: 30301255 PMCID: PMC6213304 DOI: 10.3390/ma11101903] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 09/26/2018] [Accepted: 10/02/2018] [Indexed: 11/16/2022]
Abstract
Based on the principle of grain refinement caused by the second-phase particles, a phase field model was built to describe the recrystallization process in the ZK60 alloy system with Y added under applied stress between temperatures 573 and 673 K for 140 min duration. The simulation of grain growth with second phase particles and applied stress during annealing process on industrial scale on the condition of real time-space was achieved. Quantitative analysis was carried out and some useful laws were revealed in ZK60 alloy system. The second phase particles had a promoting effect on the grain refinement, however the effect weakened significantly when the content exceeded 1.5%. Our simulation results reveal the existence of a critical range of second phase particle size of 0.3⁻0.4 μm, within which a microstructure of fine grains can be obtained. Applied stress increased the grain coarsening rate significantly when the stress was more than 135 MPa. The critical size of the second phase particles was 0.4⁻0.75 μm when the applied stress was 135 MPa. Finally, a microstructure with a grain size of 11.8⁻13.8 μm on average could be obtained when the second phase particles had a content of 1.5% and a size of 0.4⁻0.75 μm with an applied stress less than 135 Mpa after 30 min annealing at 573 K.
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Affiliation(s)
- Yuhao Song
- Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China.
| | - Mingtao Wang
- Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China.
| | - Yaping Zong
- Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China.
| | - Ri He
- Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China.
| | - Jianfeng Jin
- Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China.
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