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In situ observation of austenite grain growth and transformation temperature in coarse grain heat affected zone of Ce-alloyed weld metal闫宁,余圣甫,陈颖State Key Laboratory of Material Processing and Die... grain growth by the inclusions and the effect of cerium on the trend of acicular ferrite(AF) and ferrite side plate(FSP) transformation temperature in coarse grain heat affected zone(CGHAZ) of Ce-alloyed......
Distribution control and formation mechanism of gas inclusions in directionally solidified Al2O3-Er3Al5O12-ZrO2 ternary eutectic ceramic by laser floating zone meltingHaijun Su1,2,Yuan Liu2,Qun... in directionally solidified Al2O3-Er3Al5O12-ZrO2 eutectic ceramic rods are explored during laser floating zone melting. In atmospheric environment, highly-dense bubble-free eutectic rods are well fabricated......
compensation (SOC) and dead zone compensation (DZC), was designed based on the flow-pressure characteristic of a closed-centered proportional valve. Comparative experiments on point-to-point trajectory... compensation; dead zone compensation; mobile machinery......
zone model and crack formation analysis HU Chao, ZHOU Wei, CHANG Xiaolin, MA Gang, ZHENG Huakang (State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China) Abstract: The cohesive zone model based on elastoplastic fracture mechanics was introduced to the finite element model. Using nonlinear cohesive interface elements and defining......
J. Cent. South Univ. (2017) 24: 2745 DOI: https://doi.org/10.1007/s11771-017-3686-3 Erratum to: Squeezing rock conditions at phyllite-slate zone in Golab water conveyance tunnel, Iran: A case study Rahmati Asghar, Faramarzi Lohrasb, Darbor Mohammad Department of Mining Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran Central South University Press and Springer-Verlag......
Effect of cathodic potential on stress corrosion cracking behavior of different heat-affected zone microstructures of E690 steel in artificial seawaterYong Li1,Zhiyong Liu1,Endian Fan1,Yunhua... United Co., Ltd.摘 要:In this work, the stress corrosion cracking(SCC) behavior of E690 steel base metal(BM) and different heat-affected zone(HAZ......
High-temperature creep properties of fine grained heat-affected zone in P92 weldment WANG Xue(王 学)1,2, SHI Zhuan(史 专)3, PAN Qian-gang(潘乾刚)2, WU Hong-liang(吴洪亮)1 1. School of Power...; Abstract: The simulated fine grained heat-affected zone (FGHAZ) specimens for P92 welded joints were prepared by heat treatment, then the creep tests were......
of oxide scale, which can effectively hinder the diffusion of oxygen. Whereas, reaction of Zr with oxygen leads to the formation of ZrO2 precipitates for the Ti-22Al-21Nb-6Zr alloy, which promotes... As oxygen diffuses inward further, reduction in oxygen partial pressure leads to the dissolution and diffusion of oxygen in layer ΙΙ, the oxygen-enriched zone. In Ti-22Al-26Nb-1Zr alloy, this zone......
基于粘聚区模型的含填充区复合材料接头失效数值模拟 崔浩1,郭嘉平2,刘元镛1,许秋莲2,李玉龙1 (1.西北工业大学,航空学院,西安,710072;2.成都飞机设计研究所,成都,610041) 摘要:建立了Ⅰ型与Ⅱ型失效模式耦合的粘聚单元本构模型,并通过模拟双悬臂梁实验进行了验证.将粘聚单元插入填充区任何2个实体单元之间,预测填充区的随机裂纹,模拟了接头在拉伸载荷下的失效.计算了复合材料基体,界面胶膜,填充物3者不同强度,填充区半径,填充物刚度等多种情况下接头的拉伸失效.计算结果表明:复合材料基体,界面胶膜,填充物3者的强度显著影响接头的承载能力与失效模式;随着填充区半径增大,结构承载能力也随之提高.试验结果验证了模拟结果. 关键词:层合板; 分层; 粘聚区模型; 混合模式; 随机裂纹; laminates; delamination; cohesive zone model......
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