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Effects of precipitation strengthening heat treatment for Al-Mg alloy Seong-Jong KIM1, Seok-Ki JANG1, Min-Su HAN1, Seong-Kwon KIM2, Jong-Sin KIM3 1. Division of Marine System Engineering, Mokpo... frequently occur in Al alloys, so the application of corrosion preventing systems is also very important. Optimum conditions in terms of electrochemistry in relation to solution treatment, quenching......
一种Al-Mg合金薄板超塑性工艺研究罗建华,冯正海东北轻合金有限责任公司摘 要:采用光学显微镜,透射电镜,X射线衍射和超塑性拉伸等试验对三种不同成分的Al-Mg合金薄板进行研究和对比,确定了具有优良超塑性能Al-Mg合金薄板的成分和制备工艺.关键词:Al-Mg合金;超塑性;显微组织;亚结构;......
Er对Al-Mg合金显微组织和力学性能的影响吴正刚,宋旼,贺跃辉摘 要:以纯度为99.7%的工业纯铝,99.9%的工业纯镁和Al-10%Er的中间合金为原料,采用铸锭冶金法制备3种不同名义成分的目标合金,研究稀土元素Er对Al-Mg合金显微组织及力学性能的影响.结果表明:Er明显地降低了合金的屈服强度,抗拉强度和伸长率.当Er的添加量(质量分数)为0.4%和1%时挤压态Al-Mg合金的抗拉强度(σb)分别下降82 MPa和40 MPa,屈服强度(σ0.2)分别下降13 MPa和11 MPa,伸长率(δ)分别下降11.3%和4.5%.显微组织分析表明,添加Er在基体中形成粗大的含Er和Mg的结晶相导致Mg在铝基体中的固溶度下降,从而减少了溶质原子与位错的交互作用,导致合金的屈服强度降低.在变形过程中,粗......
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of the precipitation hardening alloys such as Al-Cu and Al-Zn-Mg alloys, high Mg levels are required [1,2]. Such high levels of Mg pose processing challenges and can increase the susceptibility.... Aluminum alloys: Structure and properties [M]. Boston: Butterworths, 1976. [4] POPOVIC M, ROMHANJI E. Stress corrosion cracking susceptibility of Al-Mg alloy sheet with high Mg content [J]. Journal......
twins in Al-Mg alloys subjected to high pressure torsion LIU Man-ping1, WANG Jun1, JIANG Ting-hui1, WU Zheng-jie1, XIE Xue-feng1, LIU Qiang1, Hans J. ROVEN2 (1. School of Materials Science... of Science and Technology, Trondheim 7491, Norway) Abstract: Dislocation, stacking faults (SFs) and deformation twins (DTs) in nanostructured Al-Mg alloys processed by high pressure torsion were identified......
, dispersed distribution of β-phrase in microstructure of the alloys. The discontinuous precipitation of β-phrase in grain boundaries therefore highly improved corrosion resistance of the alloys. 关键词:Sc; Al-Mg alloy; exfoliation corrosion; neutral salt spray corrosion; microstructure; [全文内容正在添加中] ......
Solidification simulation of Al-Mg-Er alloys using CALPHAD method ZHANG Li-gang(章立钢)1, LIU Li-bin(刘立斌)1, 2, HUANG Guo-xing(黄国幸)1, JIA Bing-ran(贾兵然)1 1. School of Materials Science...; Abstract: With CALPHAD(calculation of phase diagrams) method, the solidification paths of several Al-rich Al-Mg-Er alloys were......
reaches 0.1% or higher. The surface crinkling defect of the billet can be easily found in the alloy refined with Al-5Ti-1B wire compared with the alloys refined with other refiners. Key words: Al-Mg...Trans. Nonferrous Met. Soc. China 24(2014) 1346-1351 Melting purification process and refining effect of 5083 Al-Mg alloy Cheng-guo MA, Shu-yan QI, Shuang LI, Huan-yan XU, Xiu-lan HE School......
Laser-based directed energy deposition of novel Sc/Zr-modified Al-Mg alloys: columnar-to-equiaxed transition and aging hardening behaviorZihong Wang1,2,Xin Lin1,2,Yao Tang1,2,Nan Kang1,2,Xuehao... transition(CET) in Al-based alloys during LAM, Sc-and-Zr-modified Al-Mg alloys were processed via directed energy deposition(DED).CET was achieved by introducing high potent primary Al3(Sc,Zr) nucleation......
