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轧制方式对镁合金生体腐蚀行为的影响∗

陈吉华 陈冠清 严红革 苏斌 巩晓乐

湖南大学学报(自然科学版)2016,Vol.43Issue(12):24-30,7.
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

陈吉华 1陈冠清 2严红革 1苏斌 2巩晓乐1

作者信息

  • 1. 湖南大学 材料科学与工程学院,湖南 长沙 410082
  • 2. 湖南省喷射沉积技术及应用重点实验室,湖南 长沙 410082
  • 折叠

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)

湖南大学学报(自然科学版)

OA北大核心CSCDCSTPCD

1674-2974

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