首页 | 本学科首页   官方微博 | 高级检索  
     

多道次轧制不同变形量对铜镍合金管材组织和性能的影响
引用本文:高鑫,武会宾,刘明,张元祥,高峰,周向东,吴银杏.多道次轧制不同变形量对铜镍合金管材组织和性能的影响[J].稀有金属材料与工程,2021,50(11):3819-3823.
作者姓名:高鑫  武会宾  刘明  张元祥  高峰  周向东  吴银杏
作者单位:北京科技大学 工程技术研究院,北京 100083,北京科技大学 钢铁共性协同创新中心,北京 100083,西安交通大学 机械结构强度与振动国家重点实验室,陕西 西安 710049,东北大学 轧制技术与连轧自动化国家重点实验室,辽宁 沈阳 110167,哈尔滨工业大学 材料科学与工程学院,黑龙江 哈尔滨 150001,无锡隆达金属材料有限公司,江苏 无锡 214105,无锡隆达金属材料有限公司,江苏 无锡 214105
基金项目:国家自然科学基金项目(No. 51801149), 国家强基工程(TC170A2KN-8)
摘    要:采用电子背散射衍射(EBSD)技术对冷轧后铜镍合金管材的组织进行分析。通过对第二道次冷轧不同变形量(3.19%、9.57%、19.37%、23.97%、31.78%)的C71500铜镍合金在管材轧制后的显微硬度、抗拉伸性能、微观组织、织构及其含量变化的研究,揭示该合金织构的变化规律。通过对铜镍合金管材晶界、织构的变化及晶粒尺寸进行分析,揭示了变形量与变形储存能的量化关系,这种关系可以通过小角度晶界的比例更直观地体现出来。随着加工率的增加,铜镍合金的屈服强度、抗拉伸强度和维氏显微硬度均呈现上升的趋势,而合金的塑性则呈现下降的趋势。研究结果为合理选择变形量以及形成特殊晶界的热力学提供依据,同时为后续铜镍合金管材的变形加工提供理论依据。

关 键 词:管材  铜镍合金  多道次轧制  织构  组织演变  变形机理  力学性能
收稿时间:2020/12/17 0:00:00
修稿时间:2021/1/14 0:00:00

Effect of Deformation of Multi-pass Rolling on Microstructure and Properties of C71500 Cupronickel Alloy Tube
Gao Xin,Wu Huibin,Liu Ming,Zhang Yuanxiang,Gao Feng,Zhou Xiangdong and Wu Yinxing.Effect of Deformation of Multi-pass Rolling on Microstructure and Properties of C71500 Cupronickel Alloy Tube[J].Rare Metal Materials and Engineering,2021,50(11):3819-3823.
Authors:Gao Xin  Wu Huibin  Liu Ming  Zhang Yuanxiang  Gao Feng  Zhou Xiangdong and Wu Yinxing
Affiliation:Institute of Engineering Technology, University of Science and Technology Beijing, Beijing 100083, China,Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China,State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi''an Jiaotong University, Xi''an 710049, China,State Key Lab of Rolling and Automation, Northeastern University, Shenyang 110819, China,School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China,Wuxi Longda Metal Material Co., Ltd, Wuxi 214105, China,Wuxi Longda Metal Material Co., Ltd, Wuxi 214105, China
Abstract:Electron backscatter diffraction (EBSD) technique was used to analyze the microstructure of cold-rolled C71500 cupronickel alloy tube. Through the analysis of microhardness, tensile properties, microstructure, texture, and texture content of the cupronickel alloy tube after the second pass cold rolling with different deformations (3.19%, 9.57%, 19.37%, 23.97%, 31.78%), the texture change law of the alloy was obtained. The quantitative relationship between deformation and storage energy was revealed by analyzing the grain size and the change of texture and grain boundary, which could be directly reflected by the proportion of small angle grain boundaries. The optimal deformation of second pass rolling for C71500 alloy was obtained. Results show that the yield strength, tensile strength, and microhardness of cupronickel alloy are increased with increasing the working ratio, while the plasticity is decreased.
Keywords:tube  cupronickel alloy  multi-pass rolling  texture  microstructure evolution  deformation mechanism  mechanical properties
点击此处可从《稀有金属材料与工程》浏览原始摘要信息
点击此处可从《稀有金属材料与工程》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号