首页|显微组织特征对Mg–5Sn–3In合金在Hank's溶液中腐蚀行为的影响

显微组织特征对Mg–5Sn–3In合金在Hank's溶液中腐蚀行为的影响

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通过显微组织观察、失重实验、动态极化曲线测试和腐蚀形貌表征等手段研究挤压后显微组织的改变对Mg-5Sn-3In合金在Hank's溶液中腐蚀行为的影响.结果表明:挤压后合金的腐蚀速率与铸态合金相似,但是挤压加工极大地降低了合金局部腐蚀敏感性,特别是沿着挤压方向.挤压态合金相对均匀的腐蚀形貌主要归功于合金中细小均匀分布的Mg2Sn颗粒和显著的结晶取向.同时,细胞毒性实验证明Mg–5Sn–3In合金对NIH3T3细胞毒性检测等级为0～1级,表明合金对NIH3T3细胞呈现无毒性.
Influence of microstructural characteristics on corrosion behavior of Mg–5Sn–3In alloy in Hank's solution
The microstructural observation, the mass loss test, potentiodynamic polarization measurements and corrosion morphology examinations were conducted to study the influence of microstructural characteristics on corrosion behavior of Mg–5Sn–3In alloys in Hank's solution after extrusion. The results show that the corrosion rate of the as-cast alloy is similar to that of as-extruded alloy; however, the local corrosion susceptibility is greatly weakened in the as-extruded alloy, especially in the extrusion direction. The relatively uniform corrosion morphology of the as-extruded alloy is attributed to refined Mg2Sn particles, uniform distribution of Mg2Sn particles and favorable crystal orientation. Meanwhile, the cytotoxicity tests confirm that the Mg–5Sn–3In alloy exhibits cytotoxicity of Grade 0-1 for NIH3T3 cells, suggesting an acceptable cytotoxicity of this alloy in the vitro assay.

Mg–Sn alloyindium elementmicrostructurecorrosion behaviorcytotoxicity

王雪健、陈宗宁、张瑜博、郭恩宇、康慧君、韩培、王同敏

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大连理工大学材料科学与工程学院凝固控制与数字化制备技术辽宁省重点实验室,大连 116024

大连理工大学宁波研究院,宁波 315000

上海交通大学附属第六人民医院骨科,上海 200233

Mg–Sn合金 铟元素 显微组织 腐蚀行为 细胞毒性

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaScience and Technology Commission of Shanghai Municipality,ChinaLiaoning Revitalization Talents Program,China

2017YFA0403803Nos.520220175197405851525401519278018197432518ZR1428700XLYC1808005

2021

10.1016/S1003-6326(21)65709-6

中国有色金属学报(英文版)
中国有色金属学会

中国有色金属学报(英文版)

CSTPCDCSCDSCI
影响因子：1.183
ISSN：1003-6326
年,卷(期)：2021.31(10)
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