填料對碳化鎢與SAE 1045中碳鋼硬銲接合件
結構及特性之影響

黃家寶

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填料對碳化鎢與SAE 1045中碳鋼硬銲接合件結構及特性之影響

Effect of Filler Metals on the Microstructure and Property of WC-Co /Carbon Steel Brazed Joints

黃家寶 , Masters　　Advisor：邱六合　　

繁體中文

碳化鎢；真空硬銲； Cemented Tungsten Carbide ； vacuum brazing

Abstract │ Reference (44) │ Times Cited (5) │ Altmetrics

Abstract 〈TOP〉

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Cemented Tungsten Carbide (WC-Co) and carbon steel (SAE 1045) were brazed in a vacuum condition and protective atmosphere. Copper foil, C52100 foil, and BAg-3 brazing filler were used in this study. Copper-base fillers were used in vacuum brazing of WC-Co and SAE 1045. The results showed that using copper and C52100 brazing were formed Fe-Co-Cu alloy layer at WC-Co/Cu interface. The growth of Fe-Co-Cu alloy layer was affected by brazing temperature and time. The Fe-Co-Cu alloy layer grows increasingly from WC-Co surface with increasing brazing time. It finally reaches the carbon steel so that both base metals link. The maximum shear strength of WC-Co/Cu/SAE 1045 joint brazed at 1140℃ for 15 min was 320MPa. The maximum shear strength of WC-Co/C52100/SAE 1045 joint brazed at 1100℃ for 5 min was 363MPa. The BAg-3 filler was brazed at different temperatures for 10 min brazing time under Ar+10％H2 and Ar atmosphere. The results showed that the shear strength of brazed jointed in Ar+10％H2 atmosphere are higher than those in Ar atmosphere. The maximum shear strength of WC-Co/BAg-3/SAE 1045 was 91MPa under 950℃for 15 min in Ar+10％H2 atmosphere.

Reference ( 44 ) 〈TOP〉

4.Mehmet Uzkut, N. Sinan Koksal, B. Sadik Unlu, The determination of diffusion in connecting SAE 1040/WC material by brazing, Journal of Materials Processing Technology, Vol.169, (2005), pp. 409-413.
連結：
5.Won-Bae Lee, Byoung-Dae Kwon, Seung-Boo Jung, Effect of bonding time on joint properties of vacuum brazed WC-Co hard metal/carbon steel using stacked Cu and Ni alloy as insert metal, Materials Science and Technology, Vol.20, (2004), pp. 1474-1478.
連結：
6.Won-Bae Lee, Byoung-Dae Kwon, Seung-Boo Jung, Effect of Cr3C2 on the microstructure and mechanical properties of the brazed joints WC-Co and carbon steel, International Journal of Refractory Metal ＆ Hard metals, Vol.24, (2006), pp. 215-221.
連結：
11.M. Schwartz, Brazing: For the Engineering Technologist, Chapman ＆ Hall, (1995), p.63.
連結：
12.M. E. Wilms, V. J. Gadgil, J. M. Krougman and F. P. Ijsseling, Effect of σ-phase precipitation at 800 °C on the corrosion resistance in sea-water of a high alloyed duplex stainless steel, Corrosion Science, Vol. 36, (1994), No. 5, pp.871-881.
連結：

Times Cited (5) 〈TOP〉

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