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生物通
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通过SiO?纳米颗粒实现硬相强化,从而促进Fe-Mg合金中的位错介导的Mg ...
Fe-Mg合金生物降解植入物通过SiO2纳米颗粒调控腐蚀动力学研究。采用机械合金化(MA)制备Fe-Mg-SiO2纳米复合粉末,经激光粉末床熔融(LPBF)加工为植入体。SiO2通过增强位错密度(8.5×103?1 nm2)和晶格畸变(2.881 ?),显著提高Mg固溶度至9.8 at.%,较纯Fe-Mg合金提升16.7% ...
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