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, increased c-axis and axis ratio and nonlinear decreased crystal volume.The crystal volume of the alloy with x = 0.3 is larger than others.There is second phase A1LaNi4 in alloys when x≥0.3, which decrease...Phase Structure and Electrochemical Properties of Rare Earth Based Hydrogen Storage Alloys Che Guangdong1,Liu Xiao1,Liu Xiangdong1,Chen Weidong1 (1.School of Material Science and Technology, Inner......
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(Al)基体的负,腐蚀电流密度较高且极化电阻较小.MgZn2相对于α(Al)基体为阳极相,其在3.5%NaCl溶液中与α(Al)基体组成腐蚀微电池,引起MgZn2相自身优先溶解,进而引发合金全面溶解.关键词:铝合金；牺牲阳极；第二相；腐蚀行为Influence of second phase on corrosion behavior of Al-Zn-Sn-Ga-Mg alloyHE Jun-guang, WEN Jiu-ba, ZHOU Xu-dong(School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China)Abstract:Influence of the second phase on the corrosion......
deteriorates the tensile properties. The size and distribution of the second phase at grain boundaries have influence on the degree of corrosion damage, consequently the drop percentage in the tensile properties. Key words: 7055 aluminum alloy; intergranular corrosion; exfoliation corrosion; tensile property; grain boundary second phase 7000系铝合金具有较高的比强度,一直用作飞机的主要结构材料.但在实际服役过程中,尤其是在沿海环境,该系合金往往容易发生局部腐蚀,对飞机的......
J. Cent. South Univ. (2017) 24: 2314-2321 DOI: https://doi.org/10.1007/s11771-017-3643-1 Phase type delay distribution with PU return and sensing error in CR networks Mohammad Reza Amini, Hemati... in the literature. There is also some missed idle times during the waiting phase when secondary user finds the channel busy. Therefore, the longer the transmission time is, the higher the successfully delivered......
at room temperature, investigations to improve the properties of Mg alloys with LPS structure as second phase were focused on refining the LPS structure or applying deformation treatment[12-13]. While... with the tensile profile of the pure magnesium, the hardening effect induced by mechanical twins is not marked. A yield strength of 85 MPa is due to the mechanism of the second phase strengthening in as-cast......
-Fe第二相. 图4 Zr-Nb-O-Cu合金中第二相的TEM像与EDS谱 Fig. 4 TEM images and EDS spectra of particles of Zr-Nb-O-Cu alloy 图5 Zr-Nb-O-Cu合金第二相形貌及EDS元素面分布 Fig. 5 Morphologies of second phase... of second phases in the Zr-Nb and Zr-Nb-Sn-Fe alloys: A critical review[J]. Journal of Nuclear Materials, 2018, 505: 227-239. [11] CHANG K, FENG Wei-ming, CHEN L Q. Effect of second-phase particle......
) zones and a metastable η’ phase were observed by high-resolution transmission electron microscopy.The phenomenon of the second precipitation of the GP zones in samples subjected to DCT after being...Deep-cryogenic-treatment-induced phase transformation in the Al-Zn-Mg-Cu alloyChun-mei Li1,2,Nan-pu Cheng1,Zhi-qian Chen1,Ning Guo1,Su-min Zeng11. School of Materials Science and Engineering,Central......
Trans. Nonferrous Met. Soc. China 22(2012) 1711-1716 Phase field calculation of interface mobility in a ternary alloy WANG Gang, ZENG De-chang, LIU Zhong-wu School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China Received 23 September 2011; accepted 29 October 2011 Abstract: A novel approach based on the quantitative phase field model......
TMCP工艺对微合金高强度钢组织性能的影响张凯1,邱春林1,李四军2,杜林秀1,吴迪2(1.辽宁省沈阳市东北大学轧制技术及连轧自动化国家重点实验室2.莱芜钢铁集团有限公司 技术研发中心,山东莱芜 271104)摘 要:在实验室条件下,对一种微合金高强度钢进行热膨胀试验和热轧试验,测定了该试验钢的连续冷却转变动力学(CCT)曲线,并研究了不同温度转变的组织和第二相的体积分数,尺寸对其力学性能的影响.试验结果表明:变形温度的降低,贝氏体转变开始温度与转变结束温度均升高,硬度值也出现不同程度的提高;变形温度的降低,使......
