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多道次軋制不同變形量對(duì)銅鎳合金管材組織和性能的影響
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作者單位:

1.北京科技大學(xué) 工程技術(shù)研究院，北京 100083;2.北京科技大學(xué) 鋼鐵共性協(xié)同創(chuàng)新中心，北京 100083;3.西安交通大學(xué) 機(jī)械結(jié)構(gòu)強(qiáng)度與振動(dòng)國(guó)家重點(diǎn)實(shí)驗(yàn)室，陜西 西安 710049;4.東北大學(xué) 軋制技術(shù)與連軋自動(dòng)化國(guó)家重點(diǎn)實(shí)驗(yàn)室，遼寧 沈陽(yáng) 110167;5.哈爾濱工業(yè)大學(xué) 材料科學(xué)與工程學(xué)院，黑龍江 哈爾濱 150001;6.無(wú)錫隆達(dá)金屬材料有限公司，江蘇 無(wú)錫 214105

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基金項(xiàng)目:

國(guó)家自然科學(xué)基金項(xiàng)目(No. 51801149)， 國(guó)家強(qiáng)基工程(TC170A2KN-8)


Effect of Deformation of Multi-pass Rolling on Microstructure and Properties of C71500 Cupronickel Alloy Tube
Author:
Affiliation:

1.Institute of Engineering Technology, University of Science and Technology Beijing, Beijing 100083, China;2.Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China;3.State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, China;4.State Key Lab of Rolling and Automation, Northeastern University, Shenyang 110819, China;5.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;6.Wuxi Longda Metal Material Co., Ltd, Wuxi 214105, China

Fund Project:

National Natural Science Foundation of China (51801149); Sponsored by Ministry of Industry and Information Technology of the People's Republic of China (TC170A2KN-8)

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    摘要:

    采用電子背散射衍射（EBSD）技術(shù)對(duì)冷軋后銅鎳合金管材的組織進(jìn)行分析。通過(guò)對(duì)第二道次冷軋不同變形量（3.19%、9.57%、19.37%、23.97%、31.78%）的C71500銅鎳合金在管材軋制后的顯微硬度、抗拉伸性能、微觀組織、織構(gòu)及其含量變化的研究，揭示該合金織構(gòu)的變化規(guī)律。通過(guò)對(duì)銅鎳合金管材晶界、織構(gòu)的變化及晶粒尺寸進(jìn)行分析，揭示了變形量與變形儲(chǔ)存能的量化關(guān)系，這種關(guān)系可以通過(guò)小角度晶界的比例更直觀地體現(xiàn)出來(lái)。隨著加工率的增加，銅鎳合金的屈服強(qiáng)度、抗拉伸強(qiáng)度和維氏顯微硬度均呈現(xiàn)上升的趨勢(shì)，而合金的塑性則呈現(xiàn)下降的趨勢(shì)。研究結(jié)果為合理選擇變形量以及形成特殊晶界的熱力學(xué)提供依據(jù)，同時(shí)為后續(xù)銅鎳合金管材的變形加工提供理論依據(jù)。

    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.

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高鑫,武會(huì)賓,劉明,張?jiān)?高峰,周向東,吳銀杏.多道次軋制不同變形量對(duì)銅鎳合金管材組織和性能的影響[J].稀有金屬材料與工程,2021,50(11):3819~3823.[Gao Xin, Wu Huibin, Liu Ming, Zhang Yuanxiang, Gao Feng, Zhou Xiangdong, 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.]
DOI：10.12442/j. issn.1002-185X.20200976

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  • 收稿日期:2020-12-17
  • 最后修改日期:2021-01-14
  • 錄用日期:2021-02-04
  • 在線發(fā)布日期: 2021-11-25
  • 出版日期: 2021-11-24