热处理对可降解<strong>Zn-0.45Li</strong>合金超细丝材微观组织、力学性能和腐蚀性能的影响

doi:10.11901/1005.3093.2026.156

材料研究学报

2026, Vol. 40

Issue (10): 757-768 DOI: 10.11901/1005.3093.2026.156

研究论文

本期目录 | 过刊浏览

热处理对可降解Zn-0.45Li合金超细丝材微观组织、力学性能和腐蚀性能的影响

孙枝雪¹^,², 朱兴隆², 李谋成¹(

), 杨丽景²(

), 姜建军², 张青科², 宋振纶²

^1.上海大学材料科学与工程学院核电关键材料全国重点实验室上海 200072
^2.中国科学院宁波材料技术与工程研究所海洋关键材料全国重点实验室全省极端环境材料表面与界面重点实验室宁波 315201

Effect of Heat Treatment on the Microstructure, Mechanical Properties, and Corrosion Performance of Biodegradable Zn-0.45Li Alloy Ultra-fine Wire

SUN Zhixue¹^,², ZHU Xinglong², LI Moucheng¹(

), YANG Lijing²(

), JIANG Jianjun², ZHANG Qingke², SONG Zhenlun²

^1.State Key Laboratory of Materials for Advanced Nuclear Energy, School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
^2.State Key Laboratory of Advanced Marine Materials, Zhejiang Key Laboratory of Extreme-environmental Material Surfaces and Interfaces, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China

引用本文:

孙枝雪, 朱兴隆, 李谋成, 杨丽景, 姜建军, 张青科, 宋振纶. 热处理对可降解Zn-0.45Li合金超细丝材微观组织、力学性能和腐蚀性能的影响[J]. 材料研究学报, 2026, 40(10): 757-768.
Zhixue SUN, Xinglong ZHU, Moucheng LI, Lijing YANG, Jianjun JIANG, Qingke ZHANG, Zhenlun SONG. Effect of Heat Treatment on the Microstructure, Mechanical Properties, and Corrosion Performance of Biodegradable Zn-0.45Li Alloy Ultra-fine Wire[J]. Chinese Journal of Materials Research, 2026, 40(10): 757-768.

全文: PDF(34378 KB) HTML

摘要:

针对心血管支架编织用Zn-Li合金超细丝材的组织性能调控需求，以直径为0.14 mm的Zn-0.45Li合金丝材为研究对象，系统研究了70 ℃、120 ℃、150 ℃热处理工艺对其微观组织、力学性能与电化学腐蚀行为的影响。结果表明，70 ℃热处理时丝材仅发生静态回复，120 ℃、150 ℃热处理随保温时间延长依次发生部分再结晶、完全再结晶和晶粒长大。热处理后丝材抗拉强度显著提升、塑性下降，热处理温度越高，强度提升幅度越大、塑性降幅越显著，150 ℃保温30 min时抗拉强度达到峰值706.9 MPa，较冷拉拔态提升约90 MPa，断后延伸率保持在38.5%，为综合性能最优工艺。热处理后丝材腐蚀电流密度增大，腐蚀速率随热处理温度升高而加快，相同温度下保温时间对腐蚀行为影响较弱。晶粒长大导致晶界滑移受阻是丝材强塑性变化的核心机制，第二相析出引发的微电偶腐蚀是降解速率升高的主导原因。

关键词 ：有色金属及其合金, Zn-Li合金, 热处理, 微观结构, 力学性能

Abstract：

To tailor the microstructure and properties of Zn-Li alloy ultrafine wires for cardiovascular stent braiding, this study systematically investigates the effects of heat treatment at 70 ^oC, 120 ^oC, and 150 ^oC on the microstructure, mechanical properties, and electrochemical corrosion behavior of Zn-0.45Li alloy wires with a diameter of 0.14 mm. The results revealed that heat treatment at 70 ^oC only resulted in static recovery, whereas treatments at 120 ^oC and 150 ^oC sequentially induced partial recrystallization, full recrystallization, and grain growth as holding time increased. After heat treatment, the ultimate tensile strength of the wire increased significantly, whereas its ductility decreased. Higher treatment temperatures resulted in greater strength enhancement and a more pronounced reduction in ductility. The optimal comprehensive performance was achieved after holding at 150 ^oC for 30 min, with a maximum ultimate tensile strength of 706.9 MPa, approximately 90 MPa higher than that in the cold-drawn state, while the elongation after fracture remained at 38.5%. After heat treatment, the corrosion current density increased, and the corrosion rate accelerated with increasing treatment temperature, whereas the effect of holding time on corrosion behavior at the same temperature is relatively weak. The core mechanism underlying the evolution of strength and ductility is the obstruction of grain-boundary sliding by grain growth, while micro-galvanic corrosion induced by second-phase precipitation is the dominant factor contributing to accelerated degradation. These findings provide experimental evidence and theoretical support for the optimization of the heat treatment process of medical biodegradable Zn-Li alloy wires for stent applications.

Key words： non-ferrous metals and their alloys Zn-Li alloy heat treatment microstructure mechanical properties

收稿日期: 2026-03-26

ZTFLH:

TG166

基金资助:“尖兵领雁+X”研发攻关计划(2024C03078);宁波市公益性研究计划(2024S070)

通讯作者: 杨丽景，研究员，yanglj@nimte.ac.cn，研究方向为医用金属材料；
李谋成，教授，mouchengli@shu.edu.cn，研究方向为腐蚀电化学

Corresponding author: YANG Lijing, Tel: 15267855738, E-mail: yanglj@nimte.ac.cn;
LI Moucheng, Tel: 13918307362, E-mail: mouchengli@shu.edu.cn

作者简介: 孙枝雪，女，2001年生，硕士生

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	孙枝雪
	朱兴隆
	李谋成
	杨丽景
	姜建军
	张青科
	宋振纶
44.8K

链接本文:

https://www.cjmr.org/CN/10.11901/1005.3093.2026.156 或 https://www.cjmr.org/CN/Y2026/V40/I10/757

图1 Zn-0.45Li合金丝材的XRD图谱

图2 拉拔态Zn-0.45Li合金丝材的SEM及BSE图片

图3 70 ℃热处理后Zn-0.45Li合金丝材的纵截面和横截面SEM图片

图4 120 ℃热处理后Zn-0.45Li合金丝材的纵截面和横截面SEM图片

图5 150 ℃热处理后Zn-0.45Li合金丝材的纵截面和横截面SEM图片

表1 热处理前后Zn-0.45Li合金LiZn4相的平均尺寸和面积分数

图6 不同热处理工艺前后Zn-0.45Li合金丝材的应力应变曲线

图7 150 ℃热处理前后Zn-0.45Li合金丝材的EBSD取向图、极图、反极图以及晶粒尺寸分布

图8 150 ℃热处理前后Zn-0.45Li合金丝材的再结晶晶粒分布图

图9 不同热处理工艺前后Zn-0.45Li合金丝材在SBF溶液中的极化曲线

表2 不同热处理工艺前后Zn-0.45Li合金丝材在SBF溶液中的极化曲线拟合参数

[1]	Im S H, Jung Y, Kim S H. Current status and future direction of biodegradable metallic and polymeric vascular scaffolds for next-generation stents [J]. Acta Biomater., 2017, 60: 3 doi: S1742-7061(17)30456-7 pmid: 28716610
[2]	Fu J Y, Su Y C, Qin Y X, et al. Evolution of metallic cardiovascular stent materials: a comparative study among stainless steel, magnesium and zinc [J]. Biomaterials, 2020, 230: 119641 doi: 10.1016/j.biomaterials.2019.119641
[3]	Li Y F, Wang J F, Sheng K, et al. Optimizing structural design on biodegradable magnesium alloy vascular stent for reducing strut thickness and raising radial strength [J]. Mater. Des., 2022, 220: 110843 doi: 10.1016/j.matdes.2022.110843
[4]	Hu T Z, Yang C, Lin S, et al. Biodegradable stents for coronary artery disease treatment: recent advances and future perspectives [J]. Mater. Sci. Eng., 2018, 91C: 163
[5]	Pauck R G, Reddy B D. Computational analysis of the radial mechanical performance of PLLA coronary artery stents [J]. Med. Eng. Phys., 2015, 37(1): 7 doi: 10.1016/j.medengphy.2014.09.014 pmid: 25456397
[6]	Zheng Y F, Gu X N, Witte F. Biodegradable metals [J]. Mater. Sci. Eng., 2014, 77R: 1
[7]	Tong P D, Sheng Y L, Hou R Q, et al. Recent progress on coatings of biomedical magnesium alloy [J]. Smart Mater. Med., 2022, 3: 104
[8]	Kabir H, Munir K, Wen C E, et al. Recent research and progress of biodegradable zinc alloys and composites for biomedical applications: biomechanical and biocorrosion perspectives [J]. Bioact. Mater., 2021, 6(3): 836 doi: 10.1016/j.bioactmat.2020.09.013 pmid: 33024903
[9]	Tapiero H, Tew K D. Trace elements in human physiology and pathology: zinc and metallothioneins [J]. Biomed. Pharmacother., 2003, 57(9): 399 doi: 10.1016/s0753-3322(03)00081-7 pmid: 14652165
[10]	Jiang J M, Qian Y, Huang H, et al. Biodegradable Zn-Cu-Mn alloy with suitable mechanical performance and in vitro degradation behavior as a promising candidate for vascular stents [J]. Biomater. Adv., 2022, 133: 112652 doi: 10.1016/j.msec.2022.112652
[11]	Bowen P K, Drelich J, Goldman J. Zinc exhibits ideal physiological corrosion behavior for bioabsorbable stents [J]. Adv. Mater., 2013, 25(18): 2577 doi: 10.1002/adma.v25.18
[12]	Li Z, Shi Z Z, Hao Y, et al. Insight into role and mechanism of Li on the key aspects of biodegradable Zn-Li alloys: microstructure evolution, mechanical properties, corrosion behavior and cytotoxicity [J]. Mater. Sci. Eng., 2020, 114C: 111049
[13]	Zhao S, McNamara C T, Bowen P K, et al. Structural characteristics and in vitro biodegradation of a novel Zn-Li alloy prepared by induction melting and hot rolling [J]. Metall. Mater. Trans., 2017, 48A: 1204
[14]	Li W Y, Dai Y L, Cai W H, et al. Ultrahigh strength and uniform corrosion in Zn-Li alloys through ultrahigh pressure supersaturated solid solution treatment for biodegradable orthopedic applications [J]. Rare. Met., 2024, 43(10): 5284 doi: 10.1007/s12598-024-02753-2
[15]	Li Z, Shi Z Z, Hao Y, et al. High-performance hot-warm rolled Zn-0.8Li alloy with nano-sized metastable precipitates and sub-micron grains for biodegradable stents [J]. J. Mater. Sci. Technol., 2019, 35(11): 2618 doi: 10.1016/j.jmst.2019.06.009
[16]	Li B Y, Geng W B, Shi Z Z, et al. Tribocorrosion mechanism of biodegradable high-strength Zn-0.5Li alloy and pure Zn with bovine serum albumin adsorption [J]. npj Mater. Degrad., 2025, 9(1): 120 doi: 10.1038/s41529-025-00668-6
[17]	Zha Y, Zhou M R, Zhu Y X, et al. Effect of hot rolling temperature on microstructures, mechanical properties and corrosion resistance of bio-potential Zn-0.8Li alloy [J]. J. Alloy. Compd., 2026, 1062: 187411 doi: 10.1016/j.jallcom.2026.187411
[18]	Zhang J J, Wang Q Z, Jiao Z X, et al. Effects of combined use of inoculation and modification heat treatment on microstructure, damping and mechanical properties of Zn-Al eutectoid alloy [J]. Mater. Sci. Eng., 2020, 790A: 139740
[19]	Sun J, Zhang X, Shi Z Z, et al. Adjusting comprehensive properties of biodegradable Zn-Mn alloy through solution heat-treatment [J]. Mater. Today Commun., 2020, 23: 101150
[20]	Wątroba M, Bednarczyk W, Kawałko J, et al. Fine-tuning of mechanical properties in a Zn-Ag-Mg alloy via cold plastic deformation process and post-deformation annealing [J]. Bioact. Mater., 2021, 6(10): 3424 doi: 10.1016/j.bioactmat.2021.03.017 pmid: 33817418
[21]	Qiao Y Y, Song K X, Zhang Y M, et al. Effects of heat treatment on microstructure and mechanical properties of deformed Zn-Cu-Ti alloy [J]. J. Henan Univ. Sci. Technol. (Nat. Sci.), 2015, 36(1): 5
[21]	乔艳艳, 宋克兴, 张彦敏等. 热处理对变形Zn-Cu-Ti合金组织和性能的影响 [J]. 河南科技大学学报(自然科学版), 2015, 36(1): 5
[22]	Mostaed E, Sikora-Jasinska M, Ardakani M S, et al. Towards revealing key factors in mechanical instability of bioabsorbable Zn-based alloys for intended vascular stenting [J]. Acta. Biomater., 2020, 105: 319 doi: S1742-7061(20)30043-X pmid: 31982587
[23]	Paul P P, McShane E J, Colclasure A M, et al. A review of existing and emerging methods for lithium detection and characterization in Li-Ion and Li-Metal batteries [J]. Adv. Energy Mater., 2021, 11(17): 2100372 doi: 10.1002/aenm.v11.17
[24]	Bowen P K, Shearier E R, Zhao S, et al. Biodegradable metals for cardiovascular stents: from clinical concerns to recent Zn-Alloys [J]. Adv. Healthc. Mater., 2016, 5(10): 1121 doi: 10.1002/adhm.v5.10
[25]	Robson J D, Henry D T, Davis B. Particle effects on recrystallization in magnesium-manganese alloys: Particle-stimulated nucleation [J]. Acta Mater., 2009, 57(9): 2739 doi: 10.1016/j.actamat.2009.02.032
[26]	Yue R, Zhang J, Ke G Z, et al. Effects of extrusion temperature on microstructure, mechanical properties and in vitro degradation behavior of biodegradable Zn-3Cu-0.5Fe alloy[J]. Mater. Sci. Eng., 2019, 105C: 110106
[27]	Zheng R X, Du J P, Gao S, et al. Transition of dominant deformation mode in bulk polycrystalline pure Mg by ultra-grain refinement down to sub-micrometer [J]. Acta Mater., 2020, 198: 35 doi: 10.1016/j.actamat.2020.07.055
[28]	Jiang Y Q, Chen Q X, Zhu X L, et al. Effect of rotary forging on the tissue evolution, mechanical properties, degradation properties, and cytocompatibility of medical degradable Zn-0.45Mn alloys [J]. Corros. Commun., 2025, 20: 72 doi: 10.1016/j.corcom.2024.04.008
[29]	Liu Y Y, Yue R, Yang L J, et al. Effects of various rolling deformations on the microstructure, mechanical properties, corrosion behavior, and cytocompatibility of biodegradable Zn-0.5Mn alloys [J]. Corros. Commun., 2025, 18: 1 doi: 10.1016/j.corcom.2024.04.001

[1]	胡明, 王啟睿, 邱建科, 雷晓飞, 张金虎, 董利民, 杨锐. 拉拔变形量对超高强钛合金棒材强塑性的影响[J]. 材料研究学报, 2026, 40(8): 561-571.
[2]	杨垒, 尚学文, 田晓生, 高慧颖, 徐磊. 粉末冶金热等静压工艺成形TC11合金长时间热暴露后的力学性能[J]. 材料研究学报, 2026, 40(8): 572-582.
[3]	陈尧, 陈志勇, 柏春光. Ti₂AlNb合金薄板的微观组织、织构和力学性能[J]. 材料研究学报, 2026, 40(8): 583-594.
[4]	包方玄, 宫明龙, 刘恩瑞, 刘凤芳, 白静, 高秋志. FeCoNiCuSi _x B_{1 -}_x 高熵合金力学性能的优化和高压强化机制[J]. 材料研究学报, 2026, 40(7): 481-496.
[5]	王雨晴, 王金贺, 李可馨, 付华萌, 张海峰. W/TiZrVAl高熵合金复合材料制备和性能[J]. 材料研究学报, 2026, 40(7): 553-560.
[6]	徐磊, 李若辰, 田晓生, 卢正冠. ЭП741粉末合金中的缺陷对力学性能的影响[J]. 材料研究学报, 2026, 40(6): 425-436.
[7]	邓智文, 贾春妮, 刘腾远, 路轶, 郑成武, 王培, 李殿中. 锰影响中锰钢TRIP效应的晶体塑性计算[J]. 材料研究学报, 2026, 40(6): 437-449.
[8]	姜兴国, 沈文卓, 杨涛, 张佳利, 钟民, 曹贺, 郭守武. 还原氧化石墨烯铜基复合材料的耐腐蚀性能及其机理[J]. 材料研究学报, 2026, 40(6): 450-456.
[9]	赵欣宇, 刘恩泽, 张功, 赵媛, 宁礼奎, 信昕, 贾丹, 刘伟华, 谭政. DD10合金钎焊接头的力学性能[J]. 材料研究学报, 2026, 40(6): 465-473.
[10]	郭威, 张月林, 曹梓恒, 李龙丰, 赵觅, 吴树森. 热处理温度对FeCrVTa_0.1W_0.1Ti_0.1C_0.17 多组元合金组织与性能的影响[J]. 材料研究学报, 2026, 40(6): 474-480.
[11]	黄宏鑫, 廖兵, 郝露菡, 秦书洋, 胡小强, 郑雷刚, 时伟伟, 蔡常青. Ti微合金化调控35MnB钢中第二相和强韧性的机制[J]. 材料研究学报, 2026, 40(4): 285-294.
[12]	曹意, 李静, 熊良银, 刘实, 张春华. Ti含量对奥氏体15Cr-ODS合金硬度的影响[J]. 材料研究学报, 2026, 40(4): 295-304.
[13]	金师行, 梅松, 卢玉章, 黄亚奇, 郑伟, 申健, 张健. Sn含量对DD26单晶高温合金组织与性能的影响[J]. 材料研究学报, 2026, 40(3): 161-168.
[14]	曹云淇, 张志强, 王冉, 贾清, 李雕峰, 柏春光, 杨锐. 热处理制度对Ti-6Al-4V合金显微组织和弹性模量的影响[J]. 材料研究学报, 2026, 40(3): 201-209.
[15]	柳韵, 刘健, 王武孝. 固溶时效处理和Ce含量对Mg-Ce-Al合金导热性能和力学性能的影响[J]. 材料研究学报, 2026, 40(3): 234-240.

Viewed

Full text

Abstract

Cited

Shared

Discussed