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1989 12 Good Building Material Products Won State Awards in Chinabased on China Building Materials News by our staff reporter Shao De摘 要:<正> In 1989, there were 12 different building ma-terial products winning state awards for theirgood quality, among which two got gold medals andten got silver medals.关键词:......
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Trans. Nonferrous Met. Soc. China 20(2010) s1037-s1041 Structure of miniature components from steel produced by forming in semi-solid state b. Masek1, D. Aisman1, M. Behulova2, H... technological procedures. One of these technologies is the forming in semi-solid state involving rapid solidification of miniature components from steels. Production of such components is complicated by a number......
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Al-Cu-Mg-Ag耐热铝合金高温蠕变行为刘晓艳1,潘清林1,陆智伦1,曹素芳1,何运斌1,李文斌1(1.湖南省长沙市中南大学材料科学与工程学院)摘 要:在100-210℃和150-300 MPa的条件下,研究了Al-5.3Cu-0.8Mg-0.5Ag-0.3Mn-0.15Zr耐热铝合金的蠕变行为,探讨了时效状态对合金高温性能的影响.结果表明:在相同蠕变条件下,欠时效态合金的稳态蠕变速率远远低于峰时效态合金.在210℃/200 MPa下,欠时效态合金的蠕变断裂时间为75 h,而峰时效态合金的蠕变断裂时间仅为2......
Effects of pitting corrosion on fatigue life of aluminum alloy Y12CZ based on initial discontinuity state YU Da-zhao(郁大照) 1, CHEN Yue-liang(陈跃良)2, HU Jia-lin(胡家林)1, YANG Mao-sheng(杨茂胜)1 1. Naval...: Based on initial discontinuity state (IDS) of material, a preliminary analytical model was presented to evaluate the effect of interaction of pitting corrosion and fatigue loading on the residual......
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基于WF State Machine的UML Communication Diagram动态构建及测试孔令东盐城工学院信息工程学院摘 要:在基于UML的业务流程分析与设计过程中,从静态模型分析到动态模型构建,经过一系列抽象转换和代码实现,往往满足不了业务需求,缺少一种所见即所得的业务过程实现.在探索UMLCommunicationDiagram和WF StateMachine业务流程映射关系的基础上,选取UML用户指南中典型案例,研究从CommunicationDiagram到State Machine编程模型之间的静态映射和动态规则转换,基于WF可视化地实现了动态构建与测试,解决了从分析,设计到构建的无缝转换.关键词:UML;Communication Diagram;WF;State......
; 文章编号:1672-7207(2017)11-2912-06 Aerodynamic drag control of a ground vehicle using steady blowing array CUI Wenshi1, 2, YANG Zhigang1, 2, 3, WANG Guojun1, 2 (1. Shanghai Automotive Wind...; Technology Research Institute, Beijing 102211, China) Abstract: In order to control the aerodynamic drag of a ground vehicle, the effect of steady blowing array on the flow over a ground vehicle......
Trans. Nonferrous Met. Soc. China 25(2015) 3048-3055 Constitutive modeling and springback simulation for 2524 aluminum alloy in creep age forming You-liang YANG1,2, Li-hua ZHAN1,2, Jie LI2,3 1. State..., which can be more consistent with experimental results. Key words: 2524 aluminum alloy; creep age forming; constitutive modeling; springback simulation; stress state 1 Introduction In recent years......