黄胜,李长荣,黎志英,翟勇强,王劼

• 1:贵州大学材料与冶金学院
• 2:贵州省冶金工程与过程节能重点试验室
• 3:首钢水城钢铁(集团)有限责任公司

摘要(Abstract)：

利用光学显微镜(OM)、万能拉伸试验机、维氏硬度计、扫描电镜(SEM)和透射电镜(TEM)等研究了高钛含量(Ti≥0.2%)对高强度抗震钢筋显微组织和力学性能的影响。结果表明:试验钢的组织沿轧制方向呈带状,主要由珠光体和铁素体组成。试验钢中形成的椭圆形析出相是钛(氮、碳)第二相粒子,尺寸在120 nm左右。随着Ti含量的增加,铁素体含量明显增加,组织细化且维氏硬度增加,珠光体片层间距从170.6 nm细化到107.5 nm,屈服强度和拉伸强度有所下降,室温下的断口类型为等轴韧窝。

关键词(KeyWords)： 高强度抗震钢筋;显微组织;珠光体片层片层间距;拉伸强度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(52074095,51864013)

作者(Author): 黄胜,李长荣,黎志英,翟勇强,王劼

DOI: 10.13289/j.issn.1009-6264.2021-0189

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