湖南大学学报(自然科学版)2016,Vol.43Issue(12):24-30,7.
轧制方式对镁合金生体腐蚀行为的影响∗
Effects of Rolling Mode on Bio-corrosion Behavior of Magnesium Alloys
摘要
Abstract
The effects of rolling mode (conventional rolling and high strain-rate rolling in a single pass)on bio-corrosion behavior of magnesium alloys (ZK60,Mg-4Zn-0.3Ca,Mg-4Zn and pure Mg)were investigated by optical microscope (OM),scanning electron microscope (SEM),mass loss of immersion testing and tensile testing.The re-sults showed that magnesium alloy prepared by high strain-rate rolling exhibited lower average corrosion rate and re-duced slightly in ultimate tensile strength,compared with the counterpart prepared by conventional rolling.Mean-while,better corrosion resistance was also exhibited,which could be attributed to the grain refinement,higher DRX extent,fewer twins,and relatively coarse remained second phases.The as-rolled alloys also exhibited a uniform fili-form corrosion due to the lower fraction and finer size of the second phase.关键词
镁合金/轧制/Hank’s溶液/耐腐蚀性能/剩余抗拉强度Key words
magnesium alloys/rolling/Hank’s solution/corrosion resistance/residual tensile strength分类
矿业与冶金引用本文复制引用
陈吉华,陈冠清,严红革,苏斌,巩晓乐..轧制方式对镁合金生体腐蚀行为的影响∗[J].湖南大学学报(自然科学版),2016,43(12):24-30,7.基金项目
国家自然科学基金资助项目(51571089),National Natural Science Foundation of China(51571089) (51571089)
湖南大学青年教师成长计划资助项目(531107021095) (531107021095)
国家级SIT 创新实验项目(201410532001) (201410532001)