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Zn元素對(duì)Mg-Sr鎂合金顯微組織、力學(xué)性能及腐蝕行為的影響
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作者單位:

1.西安建筑科技大學(xué) 冶金工程學(xué)院，陜西 西安 710055;2.西北有色金屬研究院 陜西省醫(yī)用金屬材料重點(diǎn)實(shí)驗(yàn)室，陜西 西安 710016;3.暨南大學(xué) 先進(jìn)耐磨蝕及功能材料研究院，廣東 廣州 511486

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基金項(xiàng)目:

Innovation chain of key science and technology industry in Shaanxi Province(Nos.2019ZDLGY05-06), (Nos.2020ZDLGY13-05); Shaanxi province key research and development of general projects(2021SF-297)


Effects of Zn on Microstructure, Mechanical Properties and Corrosion Behavior of Mg-Sr Alloy
Author:
Affiliation:

1.School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;2.Shaanxi Key Laboratory of Biomedical Metal Materials, Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China;3.Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 511486, China

Fund Project:

Innovation Chain of Key Science and Technology Industry in Shaanxi Province (2019ZDLGY05-06, 2020ZDLGY13-05)

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    摘要:

    鎂鍶系列鎂合金是最有前景的生物可降解金屬材料之一。鍶具有促進(jìn)成骨和再生的作用，具有良好的生物相容性。但是鎂鍶合金具有強(qiáng)度不足、降解快速等缺點(diǎn)。添加適量的人體營養(yǎng)元素Zn在Mg-2Sr合金中，通過鋅在鎂合金中的固溶作用來細(xì)化晶粒以提高M(jìn)g-2Sr合金的強(qiáng)度和塑性。在模擬體液浸泡降解過程中，Mg-2Sr-2Zn合金生成的腐蝕保護(hù)層較致密，阻礙了浸泡過程中氯離子滲透，從而具有較好的耐蝕性。

    Abstract:

    Magnesium-strontium series alloys are one of the most prospective biodegradable metal materials, which perform well in biocompatibility because strontium has the function of promoting osteogenesis and regeneration. But the shortcomings of magnesium alloys such as inadequate strength and rapid degradation rate still exist. In the present study, an appropriate amount of human nutrient element zinc was added into Mg-2Sr alloy. Since the solid solution effect of zinc in the alloy can refine the grains, the strength and plasticity of Mg-2Sr alloy are improved. Results show that the Mg-2Sr-2Zn alloy has better corrosion resistance during the degradation processing. The corrosion protection layer is relatively dense, which hinders the penetration of chlorine ions in the simulated body fluid during the soaking process.

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代曉軍,楊西榮,王昌,李小成,余森,于振濤.Zn元素對(duì)Mg-Sr鎂合金顯微組織、力學(xué)性能及腐蝕行為的影響[J].稀有金屬材料與工程,2022,51(12):4421~4428.[Dai Xiaojun, Yang Xirong, Wang Chang, Li Xiaocheng, Yu Sen, Yu Zhentao. Effects of Zn on Microstructure, Mechanical Properties and Corrosion Behavior of Mg-Sr Alloy[J]. Rare Metal Materials and Engineering,2022,51(12):4421~4428.]
DOI：10.12442/j. issn.1002-185X.20220028

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  • 收稿日期:2022-01-12
  • 最后修改日期:2022-12-01
  • 錄用日期:2022-04-25
  • 在線發(fā)布日期: 2023-01-11
  • 出版日期: 2022-12-30