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of titanium alloy[18]. Compared with the previous investigation of welding with pure titanium sheet filler, the fluidity of molten pool is highly improved due to the high content of aluminium, which... by plasma arc in-situ weld-alloying was investigated, in which argon-nitrogen mixture was used as plasma gases and Ti-Al alloy as filling composite. The results show that the formation of needle-like......
of aluminium alloy 7050 [J]. Materials Engineering, 1990, 1: 23-27. (in Chinese) [3] TIAN Fu-quan, CUI Jian-zhong. Effect of duplex aging on microstructure and properties of 7050 aluminium alloy [J... in an aluminium alloy 7050 [J]. Materials Science and Engineering A, 2008, 492(1/2): 1-10 Foundation item: Project(2005CB623700) supported by the National Basic Research Program of China Corresponding......
; 文献标志码:A 文章编号:1672-7207(2012)07-2580-06 Elasto-plasticity constitutive model for aerospace aluminium alloy in strain space ZHANG Shu-yuan, WU.... The model is particularly suitable for application of stress analysis in metal processes such as pre-stretch of aluminum alloy plate. Key words: aerospace aluminium alloy; strain-space; elasto......
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:A Electrochemical noise of crack initiation and propagation of AA7075 aluminium alloy during stress corrosion cracking LI Wen-ting1, PAN Ruo-sheng2, ZHAO Wei-hang1, DONG Ze-hua1, 3 (1. School... aluminium alloy were investigated by electrochemical noise in 3%NaCl (mass fraction) solution by a constant strain test device. The results show that the propagation of cracks can produce the intensive......
Influences of melt treatment on grain sizes and morphologies of AZ91D alloy QI Xiang-chao(齐祥超)1, TANG Jing-lin(唐靖林)1, 2, LI Shuang-shou(李双寿)1, 2, ZENG Da-ben(曾大本)1 1. Department of Mechanical...) on the microstructures of AZ91D alloy were explored experimentally. The results indicate that the micron carbon powders inoculation processing with 0.1% (mass fraction) addition level makes the grain size......
7075铝合金"双峰"时效研究 任建平1,宋仁国1,张宇1,李红霞1,陈小明1 (1.浙江工业大学机械制造及自动化教育部重点实验室,浙江,杭州,310014) 摘要:采用硬度测试,拉伸力学性能测试,XRD衍射物相分析以及α(Al)基体点阵常数的测量等方法对7075铝合金超长时间时效行为,力学性能,应力腐蚀(SCC)敏感性及组织进行了研究.结果表明,7075铝合金的硬度及强度都具有时效双峰特征.两个时效峰的硬度和强度相差不多,但对应第二峰时效的合金具有高强度低SCC敏感性等优异性能.第二峰强化相主要是充分析出的η''相(MsZN_2). 关键词:7075铝合金; "双峰"时效; 组织; 性能; 7075 aluminium alloy; double-peak aging; microstructure; properties; [全文内容正在添加中] ......
均匀化处理对AA3003铝合金铸轧板再结晶组织的影响 张建军1,蒋建清2,刘建文2,涂益友2,张敏达1 (1.江苏常铝铝业股份有限公司,江苏,常熟,215532;2.东南大学材料科学与工程学院,江苏,南京,211189) 摘要:采用光学显微镜,硬度仪,扫描电镜,双臂电桥等手段,研究了均匀化处理对AA3003铝合金铸轧板组织,析出相和再结晶温度的影响.结果表明,高温均匀化退火对AA3003铝合金的再结晶具有显著地促进作用.铸轧板经580℃均匀化退火5h,冷轧后合金的再结晶温度明显降低,并且再结晶后得到尺寸梯度很小的等轴晶组织. 关键词:AA3003铝合金; 铸轧; 均匀化; 再结晶; AA3003 aluminium alloy; twin roll cast; homogenization; recrystallization; [全文内容正在添加中] ......
(Fe,Mn)3Si2, which provided the lower balanced Fe concentration in the melt in comparison with other Fe-rich intermetallics. Key words: aluminium alloy; solidification; intermetallics; iron removal 1... as sludge factor in aluminium alloys [13,14]. The recent study has shown that the Fe-rich intermetallics are α-AlFeSi and β-AlFe in Al-Mg-Si cast alloy [6]. According to the principle of thermodynamics......
