采用末端淬火实验、剥落腐蚀实验结合扫描和透射电镜分析,研究了7085铝合金剥落腐蚀的淬火敏感性.结果表明:7085铝合金的耐剥落腐蚀性能随淬火速率的降低而下降,腐蚀等级由EA级变为EB级,最大腐蚀深度从135 μm增加至315μm,腐蚀深度与淬火速率的对数呈线性关系.淬火速率降低导致晶界析出相尺寸增加、无沉淀析出带宽化和在亚晶处也有郴析出,是造成剥落腐蚀淬火敏感性的主要原因.
参考文献
| [1] | LUO Yong,Research on solid solution and aging technology optimization and properties of high hardenability and high strength 7085 type alluminum alloy,PHD thesis,Jiang Su University(2012)(罗勇,高淬透高强7085型铝合金固溶时效工艺优化与性能研究,博士学位论文,江苏大学(2012)) |
| [2] | LIANG Xin,CHEN Kanghua,CHEN Xuehai,Effect of isothermal forging rate on microstructure and properties of 7085 aluminum alloy,Materials Science and Engineering of Powder Metallurgy,16(2),290(201 1)(梁信,陈康华,陈学海,温锻造速率对7085铝合金组织与性能的影响,粉末冶金材料科学与工程,16(2),290(2011) |
| [3] | 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) |
| [4] | LIAO Wenbo,LIU Xinyu,LIU Shengdan,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,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)) |
| [5] | S.T.Lim,S.J.Yun,S.W.Nam,Improved quench sensitivity in modified aluminum alloy 7175 for thick forging applications,Materials Science and Engineering A,371(1/2),82(2004) |
| [6] | 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)) |
| [7] | Y.L.Deng,L.Wan,Y.Zhang,Influence of Mg content on quench sensitivity of Al-Zn-Mg-Cu aluminum alloys,Journal of A1loys and Compounds,509,4636(2011) |
| [8] | XIONG Baiqing,LI Xiwu,ZHANG Yongan,Novel Al-7.5Zn1.65Mg-1.4Cu-0.1Zr alloy with high strength high toughness and low quench senstivitiy,The Chinese Journal of Nonferrous Metals,19(9),1539(2009)(熊柏青,李锡武,张永安,新型高强韧低淬火敏感性Al-7.5Zn-1.65Mg-1.4Cu-0.12Zr合金,中国有色金属学报,19(9),1539(2009) |
| [9] | J.W.Newkirk,D.S.Mackenzie,The Jominy end quench for lightweight alloys development,Journal of Materials Engineering and Performance,9(4),408(2000) |
| [10] | 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) |
| [11] | T.Marlaud,B.Baroux,A.Deschamps,Understanding the compromise between strength and exfoliation corrosion in high strength 7000 alloys,Materials Science Fonum,519-521,455(2006) |
| [12] | XIAO Daihong,CHEN Songyi,CHEN Kanghua,Effect of quenching technique on properties of forged aluminum alloy AA7150 with minor So.The Chinese Journal of Nonferrous Metals,(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,(2),226(2010)) |
| [13] | S.Y.Chen,K.H.Chen,G.S.Peng,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) |
| [14] | ZHANG Xinming,LIU Shengdan,LIU Ying,Influence of quench rate and zirconium content on intergranular corrosion of 7055 type aluminum alloy,Journal of Central South University:Science and Technology,(2),181 (2007)(张新明,刘胜胆,刘瑛,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),(2),181(2007)) |
| [15] | DENG Yunlai,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,中国专利,200710034410.8,(2007) |
| [16] | S.D.Liu Q.M.Zhong,Y.Zhang,Investigation of quench sensitivity of high strength A1-Zn-Mg-Cu alloys by time-temperature-properties diagrams,Materials and Design,31,3116(2010) |
| [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 Shengdan,LI Chengbo,DENG Yunlai,The influence 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,时效对7055铝合金厚板淬透性的影响,金属学报,48(3),343(2012)) |
| [19] | CHEN Kanghua,CHEN Songyi,PENG Guosheng,Effects of deformation rate on recrystallization and properties of 7150 aluminum alloy,Special Casting and Nonferrous Alloys,(2):103(2010)(陈康华,陈送义,彭国胜,变形程度对7150铝合金再结晶及性能的影响,特种铸造及有色合金,(2),103(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)) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%