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材料研究学报  2013, Vol. 27 Issue (3): 259-267    
  研究论文 本期目录 | 过刊浏览 |
冷却速率对Al-Zn-Mg-Cu合金厚板剥落腐蚀的影响*
李承波, 刘胜胆, 王国玮, 金亚楠, 张新明
(中南大学材料科学与工程学院 有色金属材料科学与工程教育部重点实验室 长沙 410083)
Effect of Cooling Rate on Exfoliation Corrosion of Al-Zn-Mg-Cu Alloy Thick Plate
LI Chengbo LIU Shengdan** WANG Guowei JIN Yanan ZHANG Xinming
(Key Labratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education, School of Materials Science and Engineering, Central South University, Changsha 410083)
引用本文:

李承波,刘胜胆,王国玮,金亚楠,张新明. 冷却速率对Al-Zn-Mg-Cu合金厚板剥落腐蚀的影响*[J]. 材料研究学报, 2013, 27(3): 259-267.
LI Chengbo, LIU Shengdan**, WANG Guowei, JIN Yanan, ZHANG Xinming. Effect of Cooling Rate on Exfoliation Corrosion of Al-Zn-Mg-Cu Alloy Thick Plate[J]. Chinese Journal of Materials Research, 2013, 27(3): 259-267.

全文: PDF(5840 KB)  
摘要: 

研究了冷却速率对Al-Zn-Mg-Cu合金厚板剥落腐蚀性能的影响。结果表明, 降低冷却速率, 合金的剥落腐蚀性能随之下降, 腐蚀等级由EB级变成ED级, 腐蚀电极电位更负, 电流密度增加, 极化电阻减小且与冷却速率呈线性关系。冷却的速率降低导致晶界析出相覆盖率增大, 晶界析出相的Cu含量降低和晶界无沉淀析出带宽化是剥落腐蚀性能下降的主要原因。

关键词 材料失效与保护铝合金剥落腐蚀晶界析出相无沉淀析出带    
Abstract

The effect of cooling rate on exfoliation corrosion of Al-Zn-Mg-Cu alloy thick plate was investigated by polarization curve test, corrosion immersion test and end quench method. The results show that with cooling rate deceasing, the resistance to exfoliation corrosion decreased, from EB to ED, the corrosion potential decreased, the corrosion current density increased, and the polarization resistance decreased. There is a linear relationship between polarization resistance and cooling rate. The decreasing of cooling rate results in the higher coverage ratio and lower copper content of the grain boundary precipitates, wider precipitate free zone near grain boundaries, which are the primarily responsible for lower resistance to exfoliation corrosion.

Key wordsmaterials failure and protection    aluminum alloy    exfoliation corrosion    grain boundary precipitates    precipitate free zone
收稿日期: 2012-11-19     
ZTFLH:  TB304  
基金资助:

* 国家重点基础研究发展计划2012CB619500资助项目。

1 S. D. Liu, X.M. Zhang, M. A. Chen, Influence of aging on quench sensitivity effect of 7055 aluminum alloy, Materials Characterization, 59(1), 53(2008)
2 LIU Shengdan, ZHANG Xinming, HUANG Zhenbao, The effects of quenching rates on the microstructure and mechanical properties of 7055 aluminum alloy, Materials Science and Technology, 16(5), 650(2008)
(刘胜胆, 张新明, 黄振宝, 淬火速率对7055铝合金组织和力学性能的影响, 材料科学与工艺, 16(5), 650(2008))
3 LIU Shengdan, LI Chengbo, LI Lulu, DENG Yunlai, ZHANG Xinming, Hardenability of 7055 aluminum alloy plate, The Chinese Journal of Nonferrous Metals, 22(6), 1564(2012)
(刘胜胆, 李承波, 李璐璐, 邓运来, 张新明, 7055铝合金厚板的淬透性, 中国有色金属学报, 22(6), 1564(2012))
4 XIAO Daihong, CHEN Songyi, CHEN Kanghua, Effect of quenching technique on properties of forged aluminum alloy AA7150 with minor Sc, The Chinese Journal of Nonferrous Metals, 20(2), 226(2010)
(肖代红, 陈送义, 陈康华, 淬火工艺对含Sc的AA7150锻造铝合金性能的影响, 中国有色金属学报, 20(2), 226(2010))
5 J. S. Robinson, R. L. Cudd, Quench sensitivity and tensile property inhomogeneity in 7010 forgings, Journal of Materials Processing Technology, 119(1-3), 261(2001)
6 ZHANG Xinming, LIU Shengdan, LIU Ying, ZHANG Xiaoyan, Influence of quench rate and zirconium content on intergranular corrosion of 7055 type aluminum alloy, Journal of Central South University: Science and Technology, 38(2), 181(2007)
(张新明, 刘胜胆, 刘瑛, 张小艳, 淬火速率和锆含量对7055型铝合金晶间腐蚀的影响, 中南大学学报(自然科学版), 38(2), 181(2007))
7 C. Henon, G. Pouget, T. Warner, Exfoliation corrosion mechanism: interplay between intergranular corrosion and stress corrosion cracking during exfoliation corrosion of AA7449, Materials Science Forum, 519-521, 693(2006)
8 T. Marlaud, B. Baroux, A. Deschamps, Understanding the compromise between strength and exfoliation corrosion in high strength 7000 alloys, Materials Science Forum, 519-521, 455(2006)
9 CHEN Songyi, CHEN Kanghua, PENG Guosheng, LIANG Xin, CHEN Xuehai, Effect of quenching rate on microstructure and stress corrosion cracking of 7085 aluminum alloy, Transactions of Nonferrous Metals Society of China, 1(22), 47(2012)
10 S. G. Pantelakis, P. G. Daglaras, C. A. Apostolopoulos, Tensile and energy density properties of 2024, 6013, 8090 and 2091 aircraft aluminum alloy after corrosion exposure, Theoretical and Applied Fracture Mechanics, 33(2), 5775(2000)
11 LIAO Wenbo, LIU Xinyu, LIU Shengdan, CHEN Hui, ZHANG Xinming, Effects of local corrosion on tensile properties of 7055 aluminum alloys after different aging treatments, The Chinese Journal of Nonferrous Metals, 21(8), 1855(2011)
(廖文博, 刘心宇, 刘胜胆, 陈 慧, 张新明, 局部腐蚀对不同热处理状态7055铝合金拉伸性能的影响, 中国有色金属学报, 21(8), 1855(2011))
12 LIAO Wenbo, LIU Xinyu, LIU Shengdan, ZHANG Xinming, Effect of exfoliation corrosion on mechanical properties of 7055 aluminum alloy sheet, Journal of Central South University: Science and Technology, (6), 2137(2012)
(廖文博, 刘心宇, 刘胜胆, 张新明, 剥落腐蚀对7055铝合金板材力学性能的影响, 中南大学学报(自然科学版), (6), 2137(2012))
13 DENGYunlai, ZHANG Yong, ZHANG Xinming, Jominy end quench for aluminum alloy, CN 200710034410.8(2007)
(邓运来, 张 勇, 张新明, 铝合金淬透性的测试装置与方法, 中国, 200710034410. 8(2007))
14 LIU Shengdan, ZHANG Xinming, YOU Jianghai, HUANG Zhenbao, ZHANG Chong, ZHANG Xiaoyan, TTP curve of 7055 aluminum alloy and its application, The Chinese Journal of Nonferrous Metals, 16(12), 2034(2006)
(刘胜胆, 张新明, 游江海, 黄振宝, 张 翀, 张小艳, 7055铝合金的TTP曲线及其应用, 中国有色金属学报, 16(12), 2034(2006))
15 LIU Shengdan, LI Chengbo, DENG Yunlai, ZHANG Xinming, The in?uence of aging on the hardenability of 7055 aluminum alloy thick plate, Acta Metallurgica Sinica, 48(3), 343(2012)
(刘胜胆, 李承波, 邓运来, 张新明, 时效对7055铝合金厚板淬透性的影响, 金属学报, 48(3), 343(2012))
16 GB/T 22639-2008, Test method of exfoliation corrosion for wrought aluminium and aluminium alloys
(GB/T 22639-2008, 铝合金加工产品的剥落腐蚀试验方法)
17 J. D. Robson, P. B. Prangnell, Predicting recrystallised volume fraction in aluminium alloy 7050 hot rolled plate, Materials Science and Technology, 18(6), 607(2002)
18 LIU Wenjun, ZHANG Xinming, LIU Shengdan, ZHOU Xinwei, Effect of homogenization on quenching sensitivity of 7050 aluminum alloy plates, The Chinese Journal of Nonferrous Metals, 20(6), 1102(2010)
(刘文军, 张新明, 刘胜胆, 周新伟, 均匀化对7050铝合金板材淬火敏感性的影响, 中国有色金属学报, 20(6), 1102(2010))
19 S.D. Liu, W.J. Liu, Y. Zhang, X.M. Zhang, Y.L. Deng, Effect of microstructure on the quench sensitivity of AlZnMgCu alloys, Journal of Alloys and Compounds, 507, 53(2010)
20 YIN Zhimin, FANG Jiafang, HUANG Jiwu, Effects of aging treatment on intercrystalline corrosion and exfoliation corrosion behavior of 7A52 aluminum alloy, Journal of Central South University: Science and Technology, 38(4), 617(2007)
(尹志民, 方家芳, 黄继武, 时效工艺对7A52铝合金晶间腐蚀和剥蚀行为的影响, 中南大学学报(自然科学版), 38(4), 617(2007))
21 LI Jinfeng, ZHENG Ziqiao, REN Wenda, Function mechanism of secondary phase on localized corrosion of Al alloy, Materials Review, 19(2), 81(2005)
(李劲风, 郑子樵, 任文达, 第二相在铝合金局部腐蚀中的作用机制, 材料导报, 19(2), 81(2005))
22 T. Marlaud, B. Malki, C. Henon, Relationship between alloy composition, microstructure and exfoliation corrosion in Al-Zn-Mg-Cu alloys, Corrosion Science, 53, 3139(2011)
23 ZHANG Qi, LI Di, DING Xueyi, Electrochemical mechanism of intergranular corrosion in LC4 aluminum alloy, Materials Protection, 29(8), 6(1996)
(张 琦, 李 荻, 丁学谊, LC4铝合金晶间腐蚀电化学机理, 材料保护, 29(8), 6(1996))
24 T. Ramgopal, P. I. Gouma, G. S. Frankel, Role of grain boundary precipitates and solute-depleted zone on the intergranular corrosion of aluminum alloy 7150, Corrosion, 58(8), 687(2002)

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