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Mechanical and corrosion properties of biodegradable Mg-2Mn-0.3Ca alloy with different grain structure: orientation and size.

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Title: Mechanical and corrosion properties of biodegradable Mg-2Mn-0.3Ca alloy with different grain structure: orientation and size.
Authors: Peng, Yi1 (AUTHOR), Yu, Fayan1 (AUTHOR), Zhang, Dan1 (AUTHOR), Peng, Peng1,2 (AUTHOR) pengpeng@foxmail.com, Zhang, Cheng1 (AUTHOR) zhangcheng@cqust.edu.cn, Long, Shuai1 (AUTHOR), He, Qubo3,4 (AUTHOR), Yang, Qingshan1 (AUTHOR), Dai, Qingwei1 (AUTHOR), She, Jia2 (AUTHOR)
Source: Journal of Materials Science. May2025, Vol. 60 Issue 18, p7667-7684. 18p.
Subjects: Universal testing machines (Engineering), Distribution (Probability theory), Tensile strength, Heat treatment, Grain size
Abstract: The application of magnesium alloys in bone implants, cardiovascular stents and other devices in the field of biomaterials has been widely concerned. In this study, the microstructure and mechanical properties of Mg-2Mn-0.3Ca bar were investigated by the optical microscopy, scanning electron microscopy and universal material testing machine. The corrosion behaviors were carried out by hydrogen evolution, electrochemical tests and immersion tests in a simulated body fluid (SBF). The results show that the yield strength (YS) and ultimate tensile strength (UTS) of the extruded Mg-2Mn-0.3Ca alloy are 277 MPa and 285 MPa, respectively, mainly due to the effects of grain size and grain orientation. In the direction parallel to the extrusion direction (ED), the elongation (EL) of the alloy after heat treatment is increased by 357%, which is due to the random distribution of the grain orientation of the alloy after heat treatment, and the Schmidt factor is increased, (0001) < 11–20 > basal slip is more likely to be activated. At the initial stage of corrosion, bimodal grain structure is more prone to corrosion than equiaxed grain structure, and the final corrosion resistance is determined by grain orientation. Grain orientation has a more significant effect on the corrosion behavior of bars than grain size. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Mechanical and corrosion properties of biodegradable Mg-2Mn-0.3Ca alloy with different grain structure: orientation and size.
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Journal+of+Materials+Science%22&quot;&gt;Journal of Materials Science&lt;/searchLink&gt;. May2025, Vol. 60 Issue 18, p7667-7684. 18p.
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  Data: The application of magnesium alloys in bone implants, cardiovascular stents and other devices in the field of biomaterials has been widely concerned. In this study, the microstructure and mechanical properties of Mg-2Mn-0.3Ca bar were investigated by the optical microscopy, scanning electron microscopy and universal material testing machine. The corrosion behaviors were carried out by hydrogen evolution, electrochemical tests and immersion tests in a simulated body fluid (SBF). The results show that the yield strength (YS) and ultimate tensile strength (UTS) of the extruded Mg-2Mn-0.3Ca alloy are 277 MPa and 285 MPa, respectively, mainly due to the effects of grain size and grain orientation. In the direction parallel to the extrusion direction (ED), the elongation (EL) of the alloy after heat treatment is increased by 357%, which is due to the random distribution of the grain orientation of the alloy after heat treatment, and the Schmidt factor is increased, (0001) &lt; 11–20 &gt; basal slip is more likely to be activated. At the initial stage of corrosion, bimodal grain structure is more prone to corrosion than equiaxed grain structure, and the final corrosion resistance is determined by grain orientation. Grain orientation has a more significant effect on the corrosion behavior of bars than grain size. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10853-024-10007-w
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      – Code: eng
        Text: English
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      – SubjectFull: Distribution (Probability theory)
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      – SubjectFull: Grain size
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      – TitleFull: Mechanical and corrosion properties of biodegradable Mg-2Mn-0.3Ca alloy with different grain structure: orientation and size.
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              Text: May2025
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