在低合金生物医学 Mg-Zn-Ca-MgO 复合材料中实现超高强度和优异延展性

IF 15.8 1区材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING

Journal of Magnesium and Alloys Pub Date : 2024-12-01 DOI:10.1016/j.jma.2024.01.004

Chaokun Tang , Shaoyuan Lyu , Ruixiao Zheng , Guodong Li , Zhongyang Liu , Minfang Chen , Bin Jiang

{"title":"在低合金生物医学 Mg-Zn-Ca-MgO 复合材料中实现超高强度和优异延展性","authors":"Chaokun Tang , Shaoyuan Lyu , Ruixiao Zheng , Guodong Li , Zhongyang Liu , Minfang Chen , Bin Jiang","doi":"10.1016/j.jma.2024.01.004","DOIUrl":null,"url":null,"abstract":"<div><div>An ultra-fine grained (UFG) Mg-1Zn-0.2Ca-1.0MgO composite with an average grain size of 0.49 µm as well as an excellent combination of yield strength (379 MPa) and ductility (10.1%) was produced by one-step extrusion. Subsequent heat treatment at 200 ℃ for 30 min further improved its yield strength to 420 MPa and elongation to 12.1% with a slight grain growth to 0.76 µm. Microstructure observations revealed that the precipitation of high number density of Ca<sub>2</sub>Mg<sub>6</sub>Zn<sub>3</sub> phase was the main reason for the enhanced strength after ageing treatment. Grain coarsening and recovery of dislocations during ageing improved the work-hardening capability of the extruded sample, leading to improved ductility. Our work provides a pathway for the mass production of strong and ductile Mg-based materials without excessive addition of alloying elements.</div></div>","PeriodicalId":16214,"journal":{"name":"Journal of Magnesium and Alloys","volume":"12 12","pages":"Pages 5108-5118"},"PeriodicalIF":15.8000,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Realizing ultra-high strength and excellent ductility in a low-alloyed biomedical Mg-Zn-Ca-MgO composite\",\"authors\":\"Chaokun Tang , Shaoyuan Lyu , Ruixiao Zheng , Guodong Li , Zhongyang Liu , Minfang Chen , Bin Jiang\",\"doi\":\"10.1016/j.jma.2024.01.004\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>An ultra-fine grained (UFG) Mg-1Zn-0.2Ca-1.0MgO composite with an average grain size of 0.49 µm as well as an excellent combination of yield strength (379 MPa) and ductility (10.1%) was produced by one-step extrusion. Subsequent heat treatment at 200 ℃ for 30 min further improved its yield strength to 420 MPa and elongation to 12.1% with a slight grain growth to 0.76 µm. Microstructure observations revealed that the precipitation of high number density of Ca<sub>2</sub>Mg<sub>6</sub>Zn<sub>3</sub> phase was the main reason for the enhanced strength after ageing treatment. Grain coarsening and recovery of dislocations during ageing improved the work-hardening capability of the extruded sample, leading to improved ductility. Our work provides a pathway for the mass production of strong and ductile Mg-based materials without excessive addition of alloying elements.</div></div>\",\"PeriodicalId\":16214,\"journal\":{\"name\":\"Journal of Magnesium and Alloys\",\"volume\":\"12 12\",\"pages\":\"Pages 5108-5118\"},\"PeriodicalIF\":15.8000,\"publicationDate\":\"2024-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Magnesium and Alloys\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2213956724000173\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Magnesium and Alloys","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2213956724000173","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}

引用次数: 0

摘要

通过一步挤压法生产出一种超细晶粒（UFG）Mg-1Zn-0.2Ca-1.0MgO 复合材料，其平均晶粒大小为 0.49 微米，屈服强度（379 兆帕）和延展性（10.1%）均表现优异。随后在 200 ℃ 下热处理 30 分钟，屈服强度进一步提高到 420 兆帕，伸长率提高到 12.1%，晶粒略微增大到 0.76 微米。显微结构观察表明，高数量密度的 Ca2Mg6Zn3 相的析出是老化处理后强度提高的主要原因。老化过程中晶粒的粗化和位错的恢复提高了挤压样品的加工硬化能力，从而改善了延展性。我们的研究为在不添加过量合金元素的情况下大规模生产强度高、延展性好的镁基材料提供了一条途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Realizing ultra-high strength and excellent ductility in a low-alloyed biomedical Mg-Zn-Ca-MgO composite

An ultra-fine grained (UFG) Mg-1Zn-0.2Ca-1.0MgO composite with an average grain size of 0.49 µm as well as an excellent combination of yield strength (379 MPa) and ductility (10.1%) was produced by one-step extrusion. Subsequent heat treatment at 200 ℃ for 30 min further improved its yield strength to 420 MPa and elongation to 12.1% with a slight grain growth to 0.76 µm. Microstructure observations revealed that the precipitation of high number density of Ca₂Mg₆Zn₃ phase was the main reason for the enhanced strength after ageing treatment. Grain coarsening and recovery of dislocations during ageing improved the work-hardening capability of the extruded sample, leading to improved ductility. Our work provides a pathway for the mass production of strong and ductile Mg-based materials without excessive addition of alloying elements.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Journal of Magnesium and Alloys Engineering-Mechanics of Materials

CiteScore

20.20

自引率

14.80%

发文量

审稿时长

59 days

期刊介绍： The Journal of Magnesium and Alloys serves as a global platform for both theoretical and experimental studies in magnesium science and engineering. It welcomes submissions investigating various scientific and engineering factors impacting the metallurgy, processing, microstructure, properties, and applications of magnesium and alloys. The journal covers all aspects of magnesium and alloy research, including raw materials, alloy casting, extrusion and deformation, corrosion and surface treatment, joining and machining, simulation and modeling, microstructure evolution and mechanical properties, new alloy development, magnesium-based composites, bio-materials and energy materials, applications, and recycling.