2001-08-012024-05-16https://scholars.lib.ntu.edu.tw/handle/123456789/667720摘要：鈦鎳形狀記憶合金(TiNi SMAs)因擁有形狀記憶效應(SME) 及超彈性(PE)，因而被視為機能材料，並廣泛應用於各工程及醫工領域，是一個具有相當應用潛力的尖端材料。除了上述之SME及PE外，TiNi SMAs之物理性質，例如制震能、熱膨脹係數(CTE)及電阻(ER)等之變化亦與TiNi SMAs之熱麻田散體變態相關，也是極具工程應用潛力的。其中制震能之研究已執行過，而針對另外兩個物性：CTE及ER擬由本計劃中提出，就主持人過去在TiNi SMAs合金設計、熱處理及加工製程等方面之經驗，從事此兩種物性與TiNi SMAs熱麻田散體變態關聯性之學術探討，並建立其資料庫，同時利用所得之資料來作為工程應用開發的依據。本研究包括(1)TiNi SMAs B2<->B19’或B19變態相伴之CTE及ER量測及其資料庫建立，在合金設計上選擇Ms變態點在室溫以下、室溫附近、室溫以上等多種SMAs。(2)TiNi SMAs B2<-> R變態相伴之ER量測及其資料庫建立，在合金設計上選擇B2<->R變態點在室溫附近之二元及三元SMAs。而本子計劃之預期成果，也可與其他子計劃之主持人來交換研究心得<br> Abstract: The characteristics of shape memory effect (SME) and superelasticity (PE) of TiNi shape memory alloys (SMAs) are usually considered TiNi SMAs to be “functional” or “intellectual” materials and highly potential applying to the engineering fields. Except SME and PE, the physical properties associated with the martensitic transformation of TiNi SMAs also exhibit rather unique characteristic. Among these physical properties, damping capacity, coefficient of thermal expansion (CTE) and electrical resistance (ER) are the most important. . In this project which is a sub-project of an integrated project, we aim to study the CTE and ER which are associated with the martensitic transformation of TiNi SMAs. According to PI’s past experience of alloy design, heat treatment and manufacture processes etc. , binary and ternary TiNi SMAs with Ms temperature of B2<->B19 or B19’ near, below or above room temperature will be designed first. The CTE and ER associated with B2<->B19 or B19’ will be investigated, and their data will be established. At the same time, binary and ternary TiNi SMAs with transformation temperature of B2<->R near room temperature will be selected. Their ER variation associated with B2<->R and its data will also be established. Meantimes, the intensive discussion with the other PIs of this integrated project will extend the development of TiNi SMAs in engineering applications.鈦鎳形狀記憶合金合金設計熱膨脹係數電阻TiNi SMAsAlloy DesignCTEER