相變化
Phase Transformations
| 節 | 週四 |
|---|---|
2 09:00–09:50 | 相變化 EF202 3 節連堂 |
3 10:10–11:00 | |
4 11:10–12:00 |
* 根據陽明交大上課時間表所列
This class will be taught in Chinese. 本課程中文授課 The fundamental theories of phase transformations in metals and alloys will be taught using the textbook of “Phase Transformations in Metals and Alloys”. We will follow the contents of the textbook and practice exercises. There will be literature review, which will yield a PowerPoint and a WORD report, respectively, for students to compare the lectures with the students’ scientific research. Class time (授課時間): Tuesday (星期二) 10:10-12:00、Thursday (星期四) 9:00-9:50, Classroom: 教室為EF202
Introduction of Materials Science & Engineering; Physical Metallurgy; Thermodynamics 材料導論, 物理冶金, 熱力學
Teaching Assistant: 羅茂源
Midterm exam (40%) + Final exam (40%) + Individual report (10% WORD + 10% PPT) Individual reports:符合格式的:報告用PPT版, 學術格式WORD版各一 1. 選一篇和你的碩士論文相關的相變論文,練習使用專業表達模式,閱讀後以WORD的書面與PPT的口頭報告格式繳交 2. WORD:Scripta Materialia格式(https://www.elsevier.com/journals/scripta-materialia/1359-6462/guide-for-authors) 3. PPT:MIT3.22 Mechanical Properties of Materials, Spring 2008格式
| 週次 | 主題 |
|---|---|
| 第 1 週 | 2/15 Introduction of the Class (課綱說明:教科書、考試、報告、週四習題) WORD報告參考的critique: EMA5001 L00-02 Term paper info (https://www.youtube.com/watch?v=-3gfiVXHx0k&t=96s) 1.單行間距,上限3頁 2.至少兩篇觀點相反的文獻(EX: 重要,但尚未解決的問題...、需要改進的...) 3.將MIT格式要求的資訊種類,套進Scripta的寫作格式: 3.1 Introduction MIT格式第二頁Big picture 3.2 Background 文獻回顧,含critique,並由此衍伸銜接至本報告所報導的重點:要解決什麼問題 3.3 Critique含解析: 3.3.1 問題的重要性 3.3.2 要解決的切入點、學理公式,所以要什麼資訊?要用什麼量測?(EX: 機械性能、Hall-Petch formula,晶粒大小,SEM) 3.3.3 實驗流程、數據擷取方法、分析方法說明 3.3.4 討論數據時不同文獻支持的觀點、本研究受限的觀點(EX: 成分相關、另有twin、stacking faults、微結構效應...?) 3.3.5:用Decision tree觀念,排序出影響的效應 4. 未來工作的建議 5. 結論 6. 文獻 7. 致謝 2/17 Kahoot practice (2/15授課內容) |
| 第 2 週 | 2/22 Textbook review & Applications for Phase Transformation 課本的三個版本的介紹 各章節間的關係、授課考試進度 銜接本課程的系上其他課程與線上資源 美國工程學院講座 https://livestream.com/accounts/7036396/events/9376606/videos/213107047 2/24 Kahoot review (2/24授課內容) |
| 第 3 週 | Chapter 1: Thermodynamics and Phase Diagrams – 1 Equilibrium & Entropy Gibbs free energy Steady state Metastable Le Chatelier‘s principle Intensive vs. extensive Temperature effects on single component system Pressure effects on single component system Driving force for solidification Binary system: ideal solution: Temperature effects |
| 第 4 週 | Chapter 1: Thermodynamics and Phase Diagrams – 2 Binary system: Chemical potential, regular solution Exothermic & Endothermic Activity Real solution Characterizations Heterogeneous systems Binary phase diagram Miscibility gap Phase diagram containing intermediate phases |
| 第 5 週 | Chapter 1: Thermodynamics and Phase Diagrams – 3 Vacancy Phase rule Kinetics |
| 第 6 週 | Chapter 2: Diffusion-1 Definitions Applications & Diffusion directions Models to describe diffusions Interstitial diffusion Thermal activation Temperature effects Fick’s 1st & 2nd Laws |
| 第 7 週 | Chapter 2: Diffusion-2 Substitutional diffusion Self-diffusion Diffusion coefficient How to measure Kirkendal effect & Darken’s equation Atomic mobility High-diffusivity paths |
| 第 8 週 | 4/5校慶活動週(停課); 4/7 Review Chapters 1~2 |
| 第 9 週 | Midterm exam (Chapters 1 & 2) with one A4 sheet |
| 第 10 週 | Chapter 3: Crystal Interfaces and Microstructure-1 Three interfaces Interfacial energy derivation Solid/Vapor interface & FCC example Grain-boundary-migration Driving Forces Nucleation & Growth Grain boundary: Single-phase Interface Special grain boundary |
| 第 11 週 | Chapter 3: Crystal Interfaces and Microstructure-2 Grain boundary migration Alloy effects Kinetics of grain growth Solid/liquid interface Interphase interfaces: coherent, incoherent, semicoherent Second phase shape Glissile interface Interface migration |
| 第 12 週 | Chapter 4: Solidification-1 Additive manufacturing for solidification Recall Chapter 3 Nucleation in pure metals Homogeneous nucleation Nucleation rate Heterogenous nucleation Nucleation at melting Growth of a pure solid Continuous growth Lateral growth |
| 第 13 週 | Chapter 4: Solidification-2 Heat flow Supercooled & Dendritic growth Alloy solidification Perfect mixing in liquid Diffusional mixing in liquid Constitutional supercooling Cellular & dendritic solidification Eutectic solidification Ingot structure |
| 第 14 週 | Chapter 5: Diffusional Transformation in Solids Review chapters for Ch. 5 Introduction Precipitation Homogenous nucleation Nucleation rate in homogeneous precipitation Nose shaped curve of nucleation rate for homogenous precipitation Solute amounts in the alloys Heterogeneous nucleation Rate if heterogeneous nucleation Precipitate growth & shape Growth behind planar incoherent interfaces TTT diagram |
| 第 15 週 | Review Chapters 3~5 |
| 第 16 週 | Final exam with one A4 sheet (5/31) |
| 第 17 週 | 6/7~9線上e3繳交PPT報吿 |
| 第 18 週 | 6/14~16線上e3繳交WORD報吿 |
Phase Transformations in Metals and Alloys Authors: Porter, David A.; Easterling, Kenneth E.; Sherif, Mohamed
- 地點
- Classroom
- 時間
- By appointment
- 聯絡方式
- E3