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materials bonding can be evaluated by ultrasonic method. Key words: non-destructive evaluation; ultrasonic testing; diffusion bonding; dissimilar material CLC number: TG115 Document code: A 1... on Non-Destructive Testing [C]. 1998. [7]Tamura K, Onozaws M. Evaluation of diffusion bonding joints of FCD500-Al alloy during heat treatment using ultrasonic testing [J]. Preprints of the National......
摘 要:The use of non-destructive evaluation(NDE) techniques for assessing microstructural changes in processed materials is of particular importance as it can...Non-destructive microstructural analysis by electrical conductivity:Comparison with hardness measurements in different materialsGon?alo L.Sorger1,J.P.Oliveira2,3,Patrick L.Inácio3,Norbert......
of particle reinforced metal matrix composite (PMMC) was studied by ultrasonic non-destructive evaluation method. After the sample was damaged induced by tensile load, the ultrasonic wave that propagated... in the aerospace and automotive industries due to their high specific modulus, strength, and thermal stability [1-9]. With the development of this material, the non-destructive evaluation method......
高炉炉衬检测技术应用及展望胡正文1,刘征建1,左海滨1,张建良1,杨天钧1(1.北京市北京科技大学 冶金与生态工程学院)摘 要:现代高炉寿命主要取决于耐火炉衬的剩余厚度,因此检测炉衬侵蚀状况十分必要.详细论述了电阻法,超声波法,声超声回波(AU-E)法,模型推断法等几种典型高炉炉衬检测技术的基本原理,结构,系统或设备及应用状况.通过对各种直接测量法和间接推断法的综合比较及评价,指出了高炉炉衬检测技术的未来发展趋势.基于炉内热电偶的有效温度读数和应力波发射等先进直接测量技术,并结合热模拟及结果输出和反馈的检测方法......
谈黄金(有色)冶炼行业建设项目的安全评价周肇民1(1.陕西省渭南市潼关县潼关中金冶炼有限责任公司)摘 要:黄金(有色)冶炼行业建设项目的安全评价可包括两方面内容:一是危险化学品建设项目安全评价;二是非危险化学品建设项目安全评价.阐述了黄金(有色)冶炼行业建设项目的安全评价界定,介绍了安全评价的导则和技术标准,分析了安全评价中的常见问题.关键词:冶炼行业; 建设项目; 项目设立安全评价; 安全预评价; 安全验收评价......
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Evaluation method of cracking resistance of lightweight aggregate concreteJI Tao(季韬), ZHANG Bin-bin(张彬彬), CHEN Yong-bo(陈永波), ZHUANG Yi-zhou(庄一舟) (College of Civil Engineering, Fuzhou University... method was proposed to evaluate the cracking resistance of concrete, where the concepts of cracking coefficient ζt(t) and the evaluation index Acr(t) were proposed, and the development of micro-cracks......
J. Cent. South Univ. Technol. (2008) 15(s1): 329-332 DOI: 10.1007/s11771-008-374-3 Agitator tank device and drag reduction agent evaluation ZHANG Fan(张 帆)1, 2, XIAO Bo-yuan(肖博元)1, TANG... agitator for evaluation drag reduction agents (DRA) was established. The effect of DRA was defined by testing the changes of agitator torque that drives the disk rotation. The HG-DRA for oil pipeline from......
mechanical parts as a surface reforming technique. However, as demand to maintain superior mechanical performance in harsh operating environment increases, the need for non-destructive evaluation method... important. To achieve this objective, a reliable non-destructive method for evaluating thermal sprayed coating is needed. Ultrasonic inspection by means of bottom echo back reflection is a method where......
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