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熱變形可生物降解鎂基合金的微觀組織特征和力學(xué)性能研究進(jìn)展
作者:
作者單位:

1.華北理工大學(xué) 冶金與能源學(xué)院，河北 唐山 063210;2.華北理工大學(xué) 現(xiàn)代冶金技術(shù)教育部重點實驗室，河北 唐山 063210

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基金項目:

中央引導(dǎo)地方科技發(fā)展資金項目（226Z1004G）,河北省自然科學(xué)基金青年基金（E2020209153）,新金屬材料國家重點實驗室開放基金（2020-Z12）,唐山市科技計劃項目（20130205b）


Research Progress of Microstructure Characteristics and Mechanical Properties of Hot-Deformed Biodegradable Mg-based Alloys
Author:
Affiliation:

1.School of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China;2.Key Laboratory of the Ministry of Education for Modern Metallurgy Technology, North China University of Science and Technology, Tangshan 063210, China

Fund Project:

Central Government Guided Local Science and Technology Development Fund Project (226Z1004G); Natural Science Foundation of Hebei Province (E2020209153); Open Fund of State Key Lab of New Metal Materials (2020-Z12); Science and Technology Project of Tangshan (20130205b)

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    摘要:

    鎂合金憑借與人骨相近的彈性模量、體內(nèi)自發(fā)的可降解性及優(yōu)異的生物相容性，在生物醫(yī)用領(lǐng)域表現(xiàn)出巨大的發(fā)展?jié)摿ΑＨ欢?，鎂合金室溫塑性成形差及絕對抗拉強(qiáng)度/屈服強(qiáng)度低，限制了其廣泛應(yīng)用。熱變形作為一種有效改善鎂合金力學(xué)性能的方式，具有細(xì)化晶粒及破壞連續(xù)大尺寸第二相等特征，通過引入高密度位錯進(jìn)而顯著提高材料強(qiáng)度和塑性。因此，從熱變形醫(yī)用鎂合金組織演變特征出發(fā)，以變形方式為分類依據(jù)，綜述了近年來醫(yī)用鎂合金熱變形的研究動態(tài)。概述了軋制、鍛造、擠壓、高壓扭轉(zhuǎn)等4種典型熱變形工藝的差異性特征。在此基礎(chǔ)上，闡述了不同熱變形工藝下醫(yī)用鎂合金的晶粒細(xì)化機(jī)制，動態(tài)再結(jié)晶過程和位錯增殖對力學(xué)性能的影響規(guī)律。進(jìn)一步歸納了熱變形醫(yī)用鎂合金微觀組織結(jié)構(gòu)及力學(xué)性能的本質(zhì)關(guān)聯(lián)。

    Abstract:

    Magnesium alloys offer a lot of potential in the biomedical fields, due to their suitable elastic modulus for human bone, spontaneous degradability, and excellent biocompatibility, while low absolute tensile or yield strength and barren plastic abilities at room temperature significantly restrict their applications. As a successful method of enhancing mechanical properties, the hot deformation process can not only refine the grain sizes and broken sediments, but also introduce the high-density dislocations and change the texture orientation to improve the strength and plasticity. Based on the microstructure evolution laws, the latest research progress of Mg-based alloys under various hot deformation processes was reviewed. The differences in the deformation methods of rolling, forging, extrusion, and high-pressure torsion were compared. Under various hot deformation methods, the mechanism of grain refinement and the impact of dynamic recrystallization and dislocation propagation on the mechanical properties of Mg alloys were discussed. In addition, the relationships between microstructure and mechanical properties of hot-deformed Mg alloys were summarized.

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引用本文

張源,楊煜卓,劉蕓,劉薇,田亞強(qiáng),陳連生.熱變形可生物降解鎂基合金的微觀組織特征和力學(xué)性能研究進(jìn)展[J].稀有金屬材料與工程,2024,53(5):1310~1320.[Zhang Yuan, Yang Yuzhuo, Liu Yun, Liu Wei, Tian Yaqiang, Chen Liansheng. Research Progress of Microstructure Characteristics and Mechanical Properties of Hot-Deformed Biodegradable Mg-based Alloys[J]. Rare Metal Materials and Engineering,2024,53(5):1310~1320.]
DOI：10.12442/j. issn.1002-185X. E20230027

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  • 收稿日期:2023-08-31
  • 最后修改日期:2023-10-17
  • 錄用日期:2023-10-18
  • 在線發(fā)布日期: 2024-05-27
  • 出版日期: 2024-05-22