王豆,李天颖,袁晓云,张凯峰

• 1:西安工程大学材料工程学院

摘要(Abstract)：

孪生诱发塑性(Twinning induced plasticity, TWIP)钢具有优异的强塑性配合，且通过成分设计与合理的预处理工艺相结合可获得良好的抗高温氧化性能。采用光学显微镜、扫描电镜、电子万能实验机和X射线衍射等研究了高锰TWIP钢在不同温度退火后的微观组织和力学性能，以及氧化温度与Cr含量对其高温氧化行为及氧化膜性质的影响；制备了一种防护涂层，并对其防护作用进行了研究。结果表明：在600～1000℃的退火温度范围内，随着退火温度的升高，实验钢的晶粒尺寸增大，退火孪晶数量增加，抗拉强度下降，伸长率上升，强塑积也略有上升；在850～1000℃氧化时，实验钢的单位面积氧化质量损失及质量损失率都随氧化温度的升高和氧化时间的延长而增加；提高Cr含量可有效增强实验钢的抗高温氧化性能。另外，所制备的防护涂层可明显提高实验钢的抗高温氧化性能，采取涂层防护后实验钢在1000℃下氧化6 h后，单位面积氧化质量损失显著降低。

关键词(KeyWords)： TWIP钢;力学性能;高温氧化行为;氧化膜性质

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52371099);; 陕西省自然科学基础研究项目(2023-JC-QN-0462);; 西安工程大学博士科研启动基金项目(BS1723)

作者(Author): 王豆,李天颖,袁晓云,张凯峰

DOI: 10.13289/j.issn.1009-6264.2024-0313

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