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| 題 名 | Constitutional Phases in a Cu-23Ti-17Sn(at.%) Brazing Alloy=Cu-23Ti-17Sn(at.%)硬銲合金之組成相研究 |
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| 作 者 | 黃聖芳; 林舜天; | 書刊名 | 中華技術學院學報 |
| 卷 期 | 29 2003.12[民92.12] |
| 頁 次 | 頁83-91 |
| 分類號 | 440.39 |
| 關鍵詞 | 銅鈦錫; 活性金屬; 鑽石工具; 硬銲; 微結構; Copper alloy; Tin; Titanium; Brazing alloy; Intermetallic compounds; |
| 語 文 | 英文(English) |
| 中文摘要 | 本研究主要在分析Cu-23Ti-17Sn(at.%)三元合金經真空硬銲後之微結構,組EPMA分析共有五種不同的相形成,包括:CuSnTi3、Cu2SnTi3、CuSnTi5、Cu41Sn11以及Cu-9at.%Sn,其中CuSnTi3、Cu2SnTi3、CuSnTi5與Cu41Sn11為介金屬化合物,Cu-9at.%Sn為固溶體。CuSnTi3呈較大的晶粒狀結構,是由小晶粒的CuSnTi3相轉變而來,前者的晶粒尺寸與所佔的面積比例均隨硬銲持溫時間增長而提升;後者則呈相反的趨勢;基也相呈現兩相分離而形成Cu41Sn11與Cu-9at%Sn兩種相。當硬銲持溫從800℃升高到900℃時,CuSnTi3的晶粒尺寸與所佔面積比例急遽的增大,而小晶粒的CuSnTi3的則幾手完全消失,顯示在此溫度範圍有明顯的相轉發生。 |
| 英文摘要 | This paper examines the constitutional phases in a Cu-23Ti-17Sn(at.%) brazing alloy. There were five constituting phases in the Cu-23Ti-17Sn(at.%Sn) alloy, which included intermetallic compounds CuSnTi3, Cu2SnTi3, CuSnTi5, Cu41Sn11 and solid solution Cu-9at.% Sn. The mean grain size and relative abundance of Cu2SnTi3 decreased with increase in holding time at 900℃. CuSnTi3 existed as large faceted gains and was more stable than Cu2SnTi3 at holding temperature higher than 900℃. Cu2SnTi3 grains transformed into CuSnTi3 when isothermal holding temperature increased to 900℃, and held for a longer time. There were two other constituting phases, Cu41Sn11 and Cu-9Sn, in the furnace-cooled specimen, which were thought to be the result of an eutectoid reaction of the Cu-rich matrix. There was only one phase, Cu-14Sn, within the matrix because no eutectoid reaction occurred when the specimen was quenched from 900℃. |
本系統中英文摘要資訊取自各篇刊載內容。