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铝基复合金属粉末钎焊石墨的界面结构及性能
  • ISSN号：1673-0224
  • 期刊名称：粉末冶金材料科学与工程
  • 时间：2011.8.8
  • 页码：569-574
  • 分类：TG454[金属学及工艺—焊接]
  • 作者机构：[1]中南大学粉末冶金国家重点实验室,长沙410083
  • 相关基金：国家重点基础研究发展计划资助项目（2011CB605805）; 国家创新群体基金项目（51021063）
  • 相关项目：特种粉末冶金材料应用基础研究
作者： 邓利霞|李国栋|
关键词： 石墨连接, 界面反应, AL-TI, joining of graphite, interface reaction, Al-Ti
中文摘要：

以Al、Ti复合金属粉末为活性钎料对高纯石墨进行连接,研究加热温度和保温时间对接头组织和性能的影响。采用SEM、EDS、XRD研究接头界面结构及相的组成,并对钎焊机理进行分析。结果表明：1 100℃钎焊10 min时接头与石墨结合紧密,强度达到12.96 MPa。微观结构研究和XRD相分析表明界面区域发生了化学反应,反应产物主要为TiC;焊接接头的界面结构为石墨/TiC＋TiAl3＋Ti-Al固溶体/石墨。

英文摘要：

Joint experiment for high purity graphite by using Al＋Ti metal powder as brazing filler was carried out.The effects of brazing temperature and holding time on interface microstructure,phase composition and bonding strength of the welded samples were investigated by SEM,EDS,and XRD.The mechanism of brazing joint was also discussed.The results show that the optimal bonding strength of 12.96 MPa can be obtained when brazing at 1 100 ℃for 10 min.Microstructure obsession study and XRD phase analysis indicate that interfacial reaction takes place in brazing process which leads to the formation of TiC reaction layer,it also reveals that the structure of joint line is C/ TiC＋TiAl3 ＋Al-Ti solid solution/C.

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特种粉末冶金材料应用基础研究
期刊论文 181 会议论文 3 专利 16
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期刊信息
  • 《粉末冶金材料科学与工程》
  • 北大核心期刊（2011版）
  • 主管单位:教育部
  • 主办单位:中南大学
  • 主编：黄伯云
  • 地址：长沙市麓山南路中南大学粉末冶金研究院
  • 邮编：410083
  • 邮箱：pmbjb@csu.edu.cn
  • 电话：0731-88877163
  • 国际标准刊号：ISSN：1673-0224
  • 国内统一刊号：ISSN：43-1448/TF
  • 邮发代号:42-321
  • 获奖情况:
  • 国内外数据库收录:
  • 荷兰文摘与引文数据库,美国工程索引,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）
  • 被引量:3662