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, the galvanic corrosion can be reduced by organic coating. Key words: 6061 aluminum alloy; 30CrMnSiA steel; atmospheric corrosion; galvanic corrosion; organic coating; mechanical property 铝合金具有密度低,抗疲劳性能好的特点,且具有较高的比强度,比刚度和较好的耐腐蚀性能[1].其中,6061铝合金属于Al-Mg-Si系铝合金,是主要的航空系列铝合金,以Mg2Si为主要强化相,并与Al组成二元共晶相.6061铝合金是一种典型的可变形热处理的铝合金,并具有很好的综合性能,可以广泛地应用于飞机,轮船等大型交通工具上[2-3].30CrMnSiA结构钢是航空工业中使用最为广泛的一种高强钢,在淬火高温回火状态下仍具有较高的强度和塑韧......
6061铝合金在不同温度下高温单道次压缩变形真应力-应变曲线 Fig. 1 True stress-true strain curves of 6061 aluminum alloy by high temperature single pass compression experiment at different temperatures: (a) 585 ℃; (b) 595 ℃; (c) 605 ℃ 根据流动应力-应变曲线提取数据(, , 和T),进行多元线性回归,回归结果如表1所列. 表1 6061铝合金热压缩变形的本构方程的多元线性回归结果 Table 1 Multiple regression of constitutive equation of 6061aluminum alloy in hot compression......
) curve of 6061 wrought aluminum alloy The suitable range of solid fraction for semisolid metal forming is 30%-50%. Based on the calculation of the Al-Mg alloy phase diagram and Schiel formula... distributed primary α(Al). Fig. 5 Microstructures of 6061 alloy in different forming ways 3.2 Effect of isothermal holding time on primary particles of rheo-diecastings The microstructures of 6061......
be avoided. Key words: aluminum matrix composite; hardness; wear; Al 6061; SiC particles 1 Introduction Aluminium and its alloys have been broadly applied to various fields including car production, airplane...]. Presently, Al alloy based metal matrix composites are being used as candidate materials in several applications such as pistons, pushrods, cylinder liners and brake dics. Particulate-reinforced......
铝合金/镁合金搅拌摩擦焊接界面处Mg/Al反应及接头力学性能王东1,刘杰2,肖伯律1,马宗义2(1.辽宁省沈阳市科学院金属研究所沈阳材料科学国家(联合)实验室2.中航工业 黎明公司)摘 要:采用搅拌针置中(M4A4),向镁合金侧偏置2 mm(M6A2)和向铝合金侧偏置2 mm(A6M2)3种焊接方式,研究了6 mm厚6061-T651铝合金和AZ31镁合金轧制板材的搅拌摩擦焊接.SEM及XRD分析表明,3种焊接方式均在焊接界面处发现Mg17Al12相的生成和由于共晶相熔化和随后冷却所形成的孔洞.在M4A4和M6A2样品中,少量的Al搅入到镁合金侧形成金属间化合物Mg17Al12,而在A6M2样品中,少量的Mg搅入到铝合金中也形成金属间化合物Mg17Al12,在Mg17Al12与基体的界面处存在微小孔洞.由......
for mass production of lightweight metal castings. Al6061 alloy has copious reimbursement like formability, weldability, wear resistance, corrosion resistance and inexpensive. Al 6061 is available through M...Trans. Nonferrous Met. Soc. China 27(2017) 2137-2145 Effect of nano-silver on microstructure, mechanical and tribological properties of cast 6061 aluminum alloy G. PITCHAYYAPILLAI1, P. SEENIKANNAN1......
Al,纯Mg,Al-7%Si,Al-50%Cu,Al-10%Mn以及Al-5%Ti-B中间合金.按照一定的添加顺序加入坩埚电阻炉中熔化.SiCp/6061复合材料由搅拌铸造法制备熔体,直接挤压铸造成形,铸件尺寸d 66 mm×85 mm,挤压压力50 MPa,颗粒平均尺寸50 μm,颗粒体积分数5%,具体实验过程与文献[5]相似. 表1 6061铝合金化学成分 Table 1 Chemical compositions of 6061 Al alloy (mass fraction, %) 从铸锭上切取尺寸为d 3 mm×3 mm的DSC试样及d 18 mm×5 mm的硬度试样.试样经570 ℃,7 h固溶处理后,室温水淬.利用Q2000 DSC进行差热分析,用高纯铝作为标样,以10 K/min的升温速度从50 ℃加热到550 ℃.采用HB-3000B布氏硬度测试......
of numerical and experimental results for force-displacement curve of punch shows that numerical results have a good agreement with experiment. Key words: aluminum alloy 6061; forming limit diagram (FLD... stresses on these elements are evaluated. FANG et al [16] studied FLD and FLSD of aluminum alloy 1060 under linear and nonlinear strain paths. In this study, influences of the material’s yield criteria......
micrographs of tensile fracture side view of specimens: (a) ABOw/6061 composite; (b) 6061 Al alloy different crack curve. Comparing with the composite, the aluminum alloy 6061 has a much more... Fractal analysis of fracture surfaces in aluminum borate whisker-reinforced aluminum alloy 6061 composite WANG Liang, WANG Li-dong, FEI Wei-dong School of Material Science and Engineering, Harbin......
of the welded specimen is about 76% of AZ31 Mg alloy and 60% of the 6061 Al alloy in tensile strength. SEM fracture surface image of the welded specimen indicated that the welded specimen failed through brittle-mode fracture. Key words: dissimilar frictions stir welding; AZ31-O Mg Alloy; 6061 Al alloy; microstructure; mechanical properties 1 Introduction Weight reduction in automotive and aircraft industries......
