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采用等离子体电解氧化方法在铝合金表面制备了氧化锆涂层，电解液为包含Zr(OH)₄颗粒的碱性溶液. 涂层的组成、结构通过XRD、EPMA进行了研究. 结果显示，涂层主要由t-ZrO₂、m-ZrO₂...

关键词: 氧化锆 , coating , plasma electrolytic oxidation , aluminium alloy

Al-Si合金等离子涂层Ni-Cr-B-Si的激光重熔

利用5kWCO2激光器重熔Al-Si合金表面的Ni－Cr－B－Si等离子喷涂层.SEM和TEM分析结果表明，激光熔层内晶化区和非晶化区共存，在后续熔区的传热作用和周围结晶潜热作用下，有部分非晶晶化为Ni3Al纳米晶（2—5nm），其中一些逐渐长大成为细小的粒状晶．未晶化区硬度极高（HV＝1235），...

关键词: 激光表面熔化 , aluminium alloy , amorphous , nanocrystal

BACKGROUND RECTIFICATION AND FEATURE EXTRACTION OF IMAGE IN A SPOT WELD OF AL ALLOY X-RAY DETECTION

T.Gang , J.Zhang , M.B.Zhang and F.X.Liu (1)AWPT National Key. , HIT , Harbin 15001 , China 2)State 159 Factory , China)

金属学报(英文版)

A primary study on Processing in X - ray inspection of spot weld for aluminum alloy spot welding,in- cluding for background simulation,acquisition of ideal binary image, and extraction and identifi- cation of defect features was presented....

关键词: X - ray detection , null , null , null

SIMULATION PROCESS IN LASER WELDING Ⅱ

Y. P. Kathuria (Laser X Co. Ltd. Chick - shi Aichi - ken 472 , Japan)

金属学报(英文版)

With the established technique of laser in science and industry, its applications hare become diversified in the automotive welding.Two potential lasers CO2 and Nd - YAG operating in the i. r. region hare been applied in various demains covering different spectrum of welding,ranging from dissimi...

关键词: easer beam welding , null , null , null

STUDY OF K_(2)O·6TiO_(2) WHISKER REINFORCED AI COMPOSITES FOR THEIR MECHANICAL PROPERTIES AND INTERFACIAL STRUCTURES

PA N JinChangsha Institute of Technology , ChinaLI Jihong , NING Xiaoguang , YE HengqiangLab. of Atomic Imaging of Solids , Institute of Metal Research , Chinese Academy of Sciences. Shenyang , China Manuscript received 28 February , 1994

金属学报(英文版)

A newly developed whisker K_(2)O 6TiO_(2) reinforced 6061 Al composite was prepared by squeeze casting process. The flexural strength of the composite is 518MPa, and decreases to 490 M Pa after T6 treatment.The hardness of the composite also shows the similar change while T6 treating. The results of...

关键词: potassium titanate. whisker , null , null

材料期刊网

铝合金表面氧化锆等离子体电解氧化涂层的制备及形成机理研究

Al-Si合金等离子涂层Ni-Cr-B-Si的激光重熔

BACKGROUND RECTIFICATION AND FEATURE EXTRACTION OF IMAGE IN A SPOT WELD OF AL ALLOY X-RAY DETECTION

SIMULATION PROCESS IN LASER WELDING Ⅱ

STUDY OF K_(2)O·6TiO_(2) WHISKER REINFORCED AI COMPOSITES FOR THEIR MECHANICAL PROPERTIES AND INTERFACIAL STRUCTURES

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