非破壞性探討安定化熱處理對Al-7Mg鍛造合金微結構、機械與腐蝕性質之影響

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姓名

劉佳蓉(CHIA-JUNG LIU) 查詢紙本館藏

畢業系所

機械工程學系在職專班

論文名稱

非破壞性探討安定化熱處理對Al-7Mg鍛造合金微結構、機械與腐蝕性質之影響
(Non-destructive test technology on effect of stabilization on microstructures, mechanical properties and corrosion resistance of Al-7Mg forged-alloy)

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摘要(中)

本研究係探討B535.0(Al-7Mg) 鑄造合金改良成鋁鎂合金鍛件之可能性，再尋找該鍛造合金(暫命名為MB5350合金)之最佳安定化條件，並藉由非破壞性檢測技術(導電度量測)探討敏化對MB5350(Al-7Mg)鍛造合金之腐蝕與機械性質影響的關連性; 結果顯示，MB5350(Al-7Mg)鍛造合金較理想的安定化條件是280 ℃,1h，其結構為回復及極輕微的再結晶。合金經敏化處理後，隨敏化時間增加，其β相(Mg2Al3)析出量也逐漸上升，使導電度值增加，然其重量損失測試(依規範ASTM-G67)值具有輕微沿晶腐蝕敏感性之隱憂，對於如此高Mg合金而言屬輕微，故可論定280 ℃,1h為MB5350 (Al-7Mg)合金最佳安定化條件。另外，敏化過程對MB5350 (Al-7Mg)合金性質(抗腐蝕性與硬度)的影響，可藉由非破壞性檢測技術（導電度）作有效評估，其誤差率能控制在12 %以內。

摘要(英)

This research discusses potential methods of improving the properties of casting alloy B535.0 (Al-7Mg) and further explored the optimal conditions for stabilizing treatment for a new alloy named MB5350 (Al-7Mg). Though non-destructive analytical testing techniques such as conductivity test, we further studied the corrosion and mechanical properties of MB5350 (Al-7Mg) alloy in response to sensitization reaction. The result of research indicated that the forging alloy of MB5350 (Al-7Mg) can get the better stability condition under the annealing process for 280 ℃, 1H. Recovery and partial recrystallized structure was found by microstructure under this condition. Furthermore, the sensitization time can cause β-phase (Mg2Al3) precipitation amount increased, and the trend of electrical conductivity show consistent as well. Yet, after ASTM G67 standard test still showed slight potential intergranular corrosion. As a result, we conclude that 280 ℃,1h is the optimal stabilization condition for MB5350 (Al-7Mg). Besides, the influence of the sensitization process for the mechanical property (Corrosion Resistance and Hardness) of MB5350 (Al-7Mg) can be effectively evaluated by the Non-Destructive Testing (Conductivity Measurement) which deviation can control within 12 %.

關鍵字(中)

★ 鋁鎂合金
★ 非破壞檢測
★ 敏化
★ 沿晶腐蝕
★ β相
★ 導電度

關鍵字(英)

論文目次

總目錄
摘要..................................................i
Abstract.............................................ii
誌謝.................................................iii
圖目錄................................................v
表目錄...............................................vii
一、研究背景與文獻回顧 1
1.1 鋁合金簡介與研究背景 1
1.2 添加鎂合金對鋁合金的影響 9
二、實驗步驟 15
2.1 合金成分分析及實驗流程 15
三、結果與討論 18
3.1 合金鍛造性之評估 18
3.2 安定化溫度之決定 18
3.3 微結構觀察 25
3.4 MB5350鋁鎂合金敏化對非破壞性導電度值檢測之影響 30
3.5 耐蝕性質分析 31
3.6 機械性質測試 34
3.7 非破壞性檢測(導電度)與腐蝕，機械性質之關係 37
四、結論 41
五、參考文獻 43
附錄一拉伸試驗 48

參考文獻

[ASM]J.R.Davis & Associates,ASM Specialty Handbook Aluminum and Aluminum Alloys, pp. 3-19. (1994)
[ASTM1] ASTM B928/B928M-09 Standard Specification for High
Magnesium Aluminum-Alloy Sheet and Plate for Marine Service and Similar Environments. (2015)
[ASTM2] ASTM G67-04 Standard Test Method for Determining the Susceptibility to Intergranular Corrosion of 5XXX Series Aluminum Alloys by Mass Loss After Exposure to Nitric Acid(NAMLT Test). (2013)
[ASTM3] ASTM B557M-07 Standard Test Methods for Tension Testing Wrought and Cast Aluminum and Magnesium-Alloy Products. (2007)
[AT] 退火溫度對AA5083-H15鋁鎂合金沿晶腐蝕與應力腐蝕性質之影響(2012)
[DAV1]J. R. Davis and Associates, “ASM Specialty Handbook: Aluminum and Aluminum Alloys”, ASM International Materials Park, Ohio, pp. 582.(1994)
[DAV2]J. R. Davis and Associates, “ASM Specialty Handbook: Aluminum and Aluminum Alloys”, ASM International Materials Park, Ohio, pp. 61.(1994)
[DAV3]J. R. Davis and Associates, “ASM Specialty Handbook: Aluminum and Aluminum Alloys”, ASM International Materials Park, Ohio, pp. 33.(1994)
[DAV5] J. R. Davis and Associates, “ASM Specialty Handbook:
Aluminum and Aluminum Alloys”, ASM International Materials Park, Ohio, pp. 551.(1994)
[EN] The European Standard EN 515 for Aluminium and Aluminium alloys- Wrought products- Temper designations. (1993)
[FAW] Fawad Tariq , Nausheen Naz , Rasheed Ahmed Baloch , Faisal ,”Characterization of Material Properties of 2xxx Series Al-Alloys by Non Destructive Testing Techniques”, Journal of Nondestructive Evaluation, Vol. 31, pp. 17-33. (2012)
[GOS] R. Goswamia, G. Spanosa, P. S. Paoa, R. L. Holtza,“Precipitation Behavior of the β Phase in Al-5083”,Materials Science and Engineering A, Vol. 527, pp. 1089-1095.(2010)
[GUR] C. H. Gür, I. Yıldız, “Non-Destructive Investigation on the Effect of Precipitation Hardening on Impact Toughness of 7020 Al-Zn-Mg alloy”, Materials Science and Engineering A, Vol. 382 , pp. 395-400.(2004)
[HAB] A Habibalahi, M S Safizadeh, “Pulsed Eddy Current and Ultrasonic Data Fusion Applied to Stress Measurement”, Measurement Science and Technology, Vol. 25, 055601.(2014)
[HOL]R. L. Holtz, P. S. Pao, R. A. Bayles, T. M. Longazel, R. Goswami, “Corrosion-Fatigue Behavior of Aluminum Alloy 5083-H131 Sensitized at 448 K (175 °C),” Metallurgical and Materials Transactions A, Vol. 43, pp. 2839-2849.(2012)
[LEE] Young Bum Lee , Dong Hyuk Shin , Kyung-Tae Park , Won Jong Nam ,“Effect of annealing temperature on microstructures and mechanical properties of a 5083 Al alloy deformed at cryogenic temperature,” Scripta Materialia ,vol.51, pp.355–359. (2004)
[OGU] I. N. A. Oguocha, O. J. Adigun, S. Yannacopoulos,“Effect of Sensitization Heat Treatment on Properties of Al-Mg Alloy AA5083-H116”, J Mater Sci ,Vol. 43, pp. 4208-4214.(2008)
[POP1]Miljana Popovic, Endre Romhanji , “Stress corrosion cracking susceptibility of Al–Mg alloy sheet with high Mg content,” Journal of Materials Processing Technology,vol.125–126, pp.275–280.(2002)
[POP]Miljana Popovi, Endre Romhanji,“Characterization of Microstructural Changes in an Al-6.8 wt. % Mg Alloy by Electrical Resistivity Measurements”, Materials Science and Engineering A, Vol. 492, pp. 460-467.(2008)
[SEA]J. L. Searles, P. I. Gouma, R. G. Buchheit, “Stress Corrosion Cracking of Sensitized AA5083(Al-4.5Mg-1.0Mn)”, Metallurgical and Materials Transactions A, Vol. 32, p.2859-2867.(2001)
[STE] J. Stella, J. Cerezo, E. Rodriguez, ”Characterization of the Sensitization Degree in the AISI 304 Stainless Steel Using Spectral Analysis and Conventional Ultrasonic Techniques”, NDT&E International, Vol. 42, pp. 267-274.(2009)
[STM] Standard Test Method for Determining the Susceptibility to Intergranular Corrosion of 5XXX Series Aluminum Alloys by Mass Loss After Exposure to Nitric Acid (NAMLT Test)1 (2013)
[YUN] Yunze He, Guiyun Tian, Hong Zang, Moha mmed Alamin, Anthony Si mm, Paul Jackson, ”Steel Corrosion Characterization Using Pulsed Eddy Current Systems”, IEEE Sensors, Vol. 12, No. 6, pp. 2113-2120.(2012)
[羅兵辉] 羅兵辉，单毅敏，柏振海，“退火温度對淬火后冷軋5083鋁合金组織及腐蝕性能的影響”，中南大學學報(自然科學版)，第38 卷，pp.802-808. (2007)

指導教授

李勝隆(Sheng-Long Lee)

審核日期

2018-11-27

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