摘要
研究了Ca对镁锰合金显微组织和腐蚀性能的影响。当镁锰合金中加入的Ca含量达到0.6%时,镁锰合金的晶粒显著细化,并且腐蚀速率下降为原来的11.8%。其原因主要是由于形成了Mg2Ca相,使镁锰合金的腐蚀电流密度降低,从而阻碍了镁锰合金的腐蚀。
The effect of calcium on microstructure and corrosion resistance of magnesium - manganese alloy was studied. Grain refinement can be greatly improved by adding 0.6% Ca element to magnesium - manganese alloy and the corrosion rate decreases to 11. 8%. This is mainly caused by the formation of Mg： Ca phase,which acts as an effective barrier against corrosion and makes the corrosion current density decreasing.
出处
《铸造设备研究》
2005年第6期3-5,共3页
Research Studies On Foundry Equipment
基金
国家自然科学基金项目(50571073)
山西省自然科学基金项目(20051052)
山西省教育厅高科技开发项目(2002017)
关键词
镁合金
钙
显微组织
腐蚀
极化曲线
magnesium alloy, calcium, microstructure, corrosion, polarization curves
