材料工程Issue(2)：41-44,90,5.
SiO2f/SiO2复合材料与TC4,Ti3Al和TiAl的钎焊
Joining of SiO2f/SiO2 Composite to TC4, Ti3Al and TiAl
陈波 1熊华平 1毛唯 1程耀永1
作者信息
- 1. 北京航空材料研究院焊接及锻压工艺研究室,北京100095
- 折叠
摘要
Abstract
SiO2f/SiO2 composite was successfully joined to TC4, Ti3Al and TiAl using Ag-Cu-Ti brazing foils at 880℃ for 10min and the sound joints were formed. The microstructures of three kinds of joints showed that a thin reaction layer was formed near the surface of SiO2f/SiO2 matrixes where elements Ti and O were enriched. During the brazing, element Ti in the brazing filler as well as a part of dissolved Ti from base metals together diffused to the surfaces near the composites and reacted with SiO2 and finally formed Ti-O phase. According to the atom ratio of Ti and O, it was deduced that the Ti-O phase should be Ti2O phase. The white microstructures and the grey microstructures existed in the three brazing seam. The former was mostly Ag-based solid solution and the latter mainly contained Ti and Cu that formed Ti-Cu phase.关键词
SiO2f/SiO2复合材料/AgCuTi/TC4/Ti3Al/TiAlKey words
SiO2f/SiO2 composite/AgCuTi/TC4/Ti3Al/TiAl分类
矿业与冶金引用本文复制引用
陈波,熊华平,毛唯,程耀永..SiO2f/SiO2复合材料与TC4,Ti3Al和TiAl的钎焊[J].材料工程,2012,(2):41-44,90,5.
