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題名 | 利用活性填充金屬硬焊接合氧化鋯陶瓷與超合金 |
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作者姓名(中文) | 翟雲翔; 莊東漢; | 書刊名 | 材料科學 |
卷期 | 27:3 1995.09[民84.09] |
頁次 | 頁171-177 |
分類號 | 440.33 |
關鍵詞 | 活性填充金屬; 硬焊接合; 氧化鋯陶瓷; 鈷基超合金; 鎳基超合金; Active filler metal; Brazing; Zirconia ceramic; Co-base superalloy; Ni-base superalloy; |
語文 | 中文(Chinese) |
中文摘要 | 本研究利用AgCu8Ti活性填充金屬接合氧化鋯陶瓷/氧化鋯陶瓷,氧化鋯 陶瓷/UMCo-50鈷基超合金及氧化鋯陶瓷/Inconel 600鎳基超合金,分別獲得 227MPa,124MPa及45MPa之接合強度,對於前二者之接合情況,活性填充金屬內 之Ti元素均於界面聚集,此為接合成功之主要機構,對於氧化鋯陶瓷/Inconel 600 超合金之接合,超合金內含之Ni元素大量擴散進入AgCu8Ti活性填充金屬,並與 其Ti元素形成TiNi化合物,消耗此活性填充金屬之Ti元素,此為其接合強度不高 之原因;另外由於氧化鋯陶瓷與超合金熱膨脹係數之差異,使得硬焊接合後,氧 化鋯陶瓷內部存在極高之殘留應力,經由應力加成作用使得四點彎曲試驗所測得 氧化鋯陶瓷與兩種超合金之接合強度應較實際之接合界面強度為低。 |
英文摘要 | The brazing of zirconia with zirconia, Co-base superalloy (UMCo-50) and Ni-basesuperalloy (Inconel 600) by using AgCu8Ti active filler metal has been studied. The four-point bending strengths are 227MPa, 124MPa and 45MPa, respectively. For the bonding condition of zirconia with zirconia and UMCo-50, titanium in active filler metal isconcentrated at the interface and this behavior is considered to be an important mechanismfor good bonding. For the bonding of zirconia with Inconel 600, nickel in superalloy wasobserved to diffuse into AgCu8Ti active filler metal abundantly and react with titanium to form titanium nickel intermetallic compound. As a result of forming titanium nickelintermetallic compound, there is less Ti reacting with zirconia ceramic and this is why the bending strength is low in such a case. in addition, the large difference of thermalexpansion coefficient between zirconia and superalloys results in great residual stress inzirconia, which causes the measured four point bending strengths of zirconia ceramic with superalloys to be lower than the actual interfacial bonding strength via stress multiplication. |
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