指導教授：薛人愷臺灣大學：材料科學與工程學研究所王正彥Wang, Cheng-YenCheng-YenWang2014-11-262018-06-282014-11-262018-06-282014http://ntur.lib.ntu.edu.tw//handle/246246/262053In this research, both copper foil and Ni-based V2177 foil are applied in brazing IN-800 substrate. Analyses of the microstructural evolution of the joint by controlling brazing temperature, time and the thickness of foil were performed. Selected specimens were applied in shear test in order to evaluate the effect of microstructure on the brazed joint. First, IN-800/Cu/IN-800 brazed joints show no precipitate, and their shear strengths do not change with the brazing temperature and thickness of the filler foil. The crack is originated from Cu-rich matrix based on SEM microstructure analysis of the fractured surface. IN-800/VZ2177/IN-800 brazed joints include two types of precipitates, B2Cr5P and Cr4Ni3P4, in the Ni-based matrix, and both are coarsened with increasing brazing temperature and/or time. However, B2Cr5P phase is coarsened more prominent than Cr4Ni3P4 at higher temperature due to enhanced diffusion rate of boron at higher temperature. Coarsening of B2Cr5P phase is also enhanced by increasing the thickness of filler foil. Based on the result of SEM microstructural examination and XRD analyses of the fractured surfaces, the crack are originated from B2Cr5P phases, and the shear strength is decreased with the coarsened B2Cr5P phase. Optimized conditions are brazed between 1050℃ and 1080℃ for 10 ~ 20 min and using the foil with 40 μm in thickness.中文摘要 I 英文摘要 III 目 錄 IV 圖目錄 VI 表目錄 IX 第一章 前言 1 第二章 文獻回顧 2 2-1 基材簡介 2 2-1-1 Incoloy 800 2 2-1-2 純銅 2 2-2 接合製程 2 2-2-1 硬銲接合製程[4, 5] 3 2-2-2 影響硬銲接合強度因素 4 2-3 爐體硬銲簡介[10] 5 2-4 接合研究發展概況 6 第三章 實驗方法與步驟 16 3-1 IN-800基材與純CU和VZ2177兩種硬銲填料接合製程 16 3-2 剪力試驗 16 3-3 SEM顯微組織分析 17 3-4 EPMA定量分析 17 3-5 X光繞射(X-RAY DIFFRACTION, XRD)分析 17 第四章 使用純CU填料硬銲接合IN-800合金 21 4-1 IN-800/CU/IN-800 硬銲接合 21 4-1-1 IN-800/Cu/IN-800硬銲接合於1120℃ 21 4-1-2 IN-800/Cu/IN-800硬銲接合於1160℃ 22 4-1-3 IN-800/Cu/IN-800硬銲接合於1200℃ 22 4-1-4 IN-800/Cu(100 μm)/IN-800 硬銲於 1120℃、1160℃、1200℃ 22 4-1-5 IN-800/Cu/IN-800 成分擴散深度分析 23 4-1-6 IN-800/Cu(50 μm)/IN-800 銲點剪力試驗 24 4-1-7 IN-800/Cu(100 μm)/IN-800 銲點剪力試驗 25 第五章 使用VZ2177填料硬銲接合IN-800合金 40 5-1 IN-800/VZ2177/IN-800 硬銲接合 40 5-1-1 IN-800/VZ2177/IN-800 硬銲於 1050℃ 40 5-1-2 IN-800/VZ2177/IN-800 硬銲於 1080℃ 41 5-1-3 IN-800/VZ2177/IN-800 硬銲於 1110℃ 41 5-1-4 IN-800/VZ2177(80 μm)/IN-800 硬銲於1080℃ 42 5-1-5 IN-800/VZ2177(40 μm)/IN-800 銲點剪力試驗 42 5-1-6 IN-800/VZ2177(80 μm)/IN-800 銲點剪力試驗 44 第六章 結 論 60 6-1 IN-800 與 CU 硬銲填料接合製程 60 6-2 IN-800 與 VZ2177 硬銲填料接合製程 60 參考文獻 624790985 bytesapplication/pdf論文使用權限：不同意授權鎳基填料銅填料鎳基合金顯微結構組織剪力強度thesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/262053/1/ntu-103-R01527065-1.pdf