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Reply to the“Discussion on“Data-driven Methods to Predict the Burst Strength of Corroded Line Pipelines Subjected to Internal Pressure”by Jie Cai et al.https://doi.org/10.1007/s11804-022-00263-0”
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作者 Jie Cai 《哈尔滨工程大学学报(英文版)》 2025年第1期252-253,共2页
With the booming of Industrial Internet of Things(IIoT)and Artificial Intelligence(AI),the objective of the work in Cai et al.(2022)is to explore the utilizing of data-driven methodology for the prediction of the burs... With the booming of Industrial Internet of Things(IIoT)and Artificial Intelligence(AI),the objective of the work in Cai et al.(2022)is to explore the utilizing of data-driven methodology for the prediction of the burst strength of cor‐roded pipelines,which can hopefully overcome the com‐mon drawbacks of widely-used traditional Finite Element Method(FEM)and the needs of sufficient domain knowl‐edge.The authors in Cai et al.(2022)are not aiming to overthrow the functionality and beneficence introduced by physical-based methods and widely-used empirical/semi-emprical engineering expressions,such as the DNV standars(DNVGL,2017)in offshore engineering. 展开更多
关键词 al. OVERCOME utilizing
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Why have youth physical activity trends flatlined in the last decade? Opinion piece on “Global trends in insufficient physical activity among adolescents: a pooled analysis of 298 population-based surveys with 1.6 million participants” by Guthold et al. 被引量:36
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作者 Greet Cardon Jo Salmon 《Journal of Sport and Health Science》 SCIE 2020年第4期335-338,共4页
1.No global progress on youth physical activity prevalenceTagedEnd TagedPDespite hundreds of intervention studies over decennia that have been dedicated to developing and testing programs and strategies to promote phy... 1.No global progress on youth physical activity prevalenceTagedEnd TagedPDespite hundreds of intervention studies over decennia that have been dedicated to developing and testing programs and strategies to promote physical activity(PA)in adolescents,14 global inactivity levels remain persistently high.Based on self-report data from 1.6 million schoolgoing adolescents from 146 countries,Guthold et al.5 confirmed previous urgent calls to get adolescents more active.Researchers from the World Health Organization(WHO)recently published global prevalence rates and the first ever global time trends for insufficient PA in youth.They reported that more than 80%of school-going adolescents globally did not meet the current recommendations of at least 1 h of PA per day. 展开更多
关键词 al. ADOLESCENT hundreds
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Three New C_(21) Steroidal Glycosides from the Roots of Cynanchum komarovii Al.Iljinski 被引量:11
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作者 LiQinWANG YueMaoSHEN +2 位作者 YuQingWEI XingXU JunZHOU 《Chinese Chemical Letters》 SCIE CAS CSCD 2004年第2期200-203,共4页
Three new C21 steroidal glycosides named komaroside A, komaroside B, komaroside C were isolated from the ethanolic extract of the roots of Cynanchum komarovii Al.Iljinski (Asclepiadaceae), their structures were determ... Three new C21 steroidal glycosides named komaroside A, komaroside B, komaroside C were isolated from the ethanolic extract of the roots of Cynanchum komarovii Al.Iljinski (Asclepiadaceae), their structures were determined by physiochemical and spectroscopic analysis. 展开更多
关键词 Cynanchum komarovii al.Iljinski ASCLEPIADACEAE komaroside A B C.
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Comment on“Treatment of chronic prostatitis in Chinese men”by Liang CZ et al.in Asian Journal of Andrology
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作者 Robert H.Getzenberg 《Asian Journal of Andrology》 SCIE CAS CSCD 2009年第2期149-149,共1页
The manuscript by Liang et al.[1]entitled Treatment of chronic prostatitis in Chinese men appears to be an important and comprehensive analysis of the issue of chronic prostatitis(CP)as well as treatment avenues that ... The manuscript by Liang et al.[1]entitled Treatment of chronic prostatitis in Chinese men appears to be an important and comprehensive analysis of the issue of chronic prostatitis(CP)as well as treatment avenues that are pursued within a Chinese population.The analyses of more than 12000 men confirm other studies[2]which demonstrate that CP represents a large problem in adult male populations.Even the numbers that are seen in urology clinics may under represent the true magnitude of these symptom profiles that are observed.This study also confirms the fact that antibiotics,as commonly used,do not seem to have much efficacy within this group. 展开更多
关键词 al. PROSTATITIS FIR
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TRPM8 and prostate cancer:to overexpress or repress,that is the question-comment on“Effects of TRPM8 on proliferation and motility of prostate cancer PC-3 cells”by Yang ZH et al.in Asian Journal of Andrology
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作者 Prakash Kulkarni 《Asian Journal of Andrology》 SCIE CAS CSCD 2009年第2期150-151,共2页
The progression of cells from a normal differentiated state in which the rates of proliferation and apoptosis are in check,to a tumorigenic and metastatic state where these rates are imbalanced,likely involves the acc... The progression of cells from a normal differentiated state in which the rates of proliferation and apoptosis are in check,to a tumorigenic and metastatic state where these rates are imbalanced,likely involves the accumulation of mutations in multiple genes,and the evolution and clonal selection of more aggressive phenotypes.These events are associated with changes in the expression of numerous gene products including the transient receptor potential(TRP)proteins. 展开更多
关键词 TRPM8 al. MOTILITY
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Managing arterial health in adults with metabolic diseases: Is high-intensity interval exercise the answer? Response to the commentary by Lopes et al.
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作者 Kimberley L.Way Angelo Sabag +2 位作者 Angela S.Lee Stephen M.Twigg Nathan A.Johnson 《Journal of Sport and Health Science》 SCIE 2021年第4期510-512,共3页
Dear editor,We thank Lopes et al.^(1) for their interest in our study and for writing an insightful commentary based on our findings,which were recently published in the Journal of Sport and Health Science,^(2) and fo... Dear editor,We thank Lopes et al.^(1) for their interest in our study and for writing an insightful commentary based on our findings,which were recently published in the Journal of Sport and Health Science,^(2) and for their work.^(3) As noted by the authors,there is consistency in several key findings between our laboratories,and this should serve as a basis for future investigation in this area.We agree that there has been little work examining the effect of high-intensity interval exercise(HIIE)on central arterial stiffness. 展开更多
关键词 al. finding THANK
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Reply to comment by Durkin et al.on “Using a modern analogue to interpret depositional position in ancient fluvial-tidal channels:Example from the McMurray Formation,Canada” by A.D.La Croix,S.E.Dashtgard,and J.A.MacEachern
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作者 Andrew D.La Croix Shahin E.Dashtgard James A.MacEachern 《Geoscience Frontiers》 SCIE CAS CSCD 2020年第3期1087-1092,共6页
1.Introduction We are pleased to have the opportunity to discuss our paper (La Croix et al.,2019) with Durkin et al.(2020).Their critique demonstrates the wide interest in the McMurray Formation held by both academic ... 1.Introduction We are pleased to have the opportunity to discuss our paper (La Croix et al.,2019) with Durkin et al.(2020).Their critique demonstrates the wide interest in the McMurray Formation held by both academic and industry geoscientists,especially given the economic importance of the stratigraphic interval.Furthermore,it highlights the various working interpretations for the unit’s paleoenvironmental setting and stratigraphic architecture;two highly contested scientific questions.Durkin et al. 展开更多
关键词 al. CANADA FLUVIal
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REPLY BY LI Hua et al.
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《Chinese Physics Letters》 SCIE CAS 1988年第9期431-432,共2页
In this communication we would like to reply to the comment of Mr.PEI Xiedi on our paper(1).
关键词 al. COMMENT REP
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1BL.1RS和1AL.1RS对红色软粒冬小麦的碾磨品质和烘烤品质的比较效应
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作者 邱敦莲 Anne +1 位作者 L.Mckendry 《国外作物育种》 2001年第4期23-24,共2页
关键词 红色软粒冬小麦 碾磨品质 烘烤品质 染色体易位 1BL.1RS 1al.1RS 比较效应
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Book Review:Longhorned Woodboring Beetles(Coleoptera:Cerambycidae and Disteniidae):Primary Types of the Smithsonian Institution(edited by S.W.Lingafelter et al.,Smithsonian Institution Scholarly Press,Washington D.C.,USA.2014,390 pages) 被引量:1
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作者 Meiying Lin 《Zoological Systematics》 CSCD 2016年第2期241-241,共1页
This book was written by five authors. I had met two of them, the first and third author. The first author, Steven Wayne Lingafelter, is a research entomologist with the Systematic Entomology Laboratory, USDA, based a... This book was written by five authors. I had met two of them, the first and third author. The first author, Steven Wayne Lingafelter, is a research entomologist with the Systematic Entomology Laboratory, USDA, based at the Smithsonian Institution's National Museum of Natural History. He has specialized on longhomed woodboring beetles for almost three decades and currently specializes on the Neotropical fauna. 展开更多
关键词 USA Cerambycidae and Disteniidae COLEOPTERA Lingafelter et al Longhorned Woodboring Beetles Smithsonian Institution Scholarly Press Washington D.C edited by S PAGES
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Comment on “Relativistic atomic data for W XLVII” by S. Aggarwal et al. [Chin. Phys. B 24(2015)053201] 被引量:1
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作者 Kanti M.Aggarwal 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第12期291-294,共4页
Recently, S. Aggarwal et al. [Chin. Phys. B 24(2015) 053201] reported energy levels, radiative rates, and lifetimes for the lowest 148 levels belonging to the 3s^23 p, 3s3p^2, 3s^23d, 3s3p3d, 3p^3, 3p^23d, 3s3d^2, 3... Recently, S. Aggarwal et al. [Chin. Phys. B 24(2015) 053201] reported energy levels, radiative rates, and lifetimes for the lowest 148 levels belonging to the 3s^23 p, 3s3p^2, 3s^23d, 3s3p3d, 3p^3, 3p^23d, 3s3d^2, 3p3d^2, and 3d^3 configurations of Al-like tungsten. While their calculated energies for the levels and the radiative rates for transitions are correct, the reported results for lifetimes are completely wrong. According to our calculations, errors in their reported lifetimes are up to 14 orders of magnitude for over 90% of the levels. Here we report the correct lifetimes and explain the reasons for discrepancies. 展开更多
关键词 energy levels radiative rates LIFETIMES al-like tungsten
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Commentary on:“Assessing proprioception:A critical review of methods”by Han et al. 被引量:1
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作者 Carmen Krewer Ann Van de Winckel +2 位作者 Naveen Elangovan Joshua E.Aman Jürgen Konczak 《Journal of Sport and Health Science》 SCIE 2016年第1期91-92,共2页
In recent years,the assessment of proprioceptive function has received increased attention in clinical and motor skill research.This is not surprising given the growing body of scientific evidence on the importance of... In recent years,the assessment of proprioceptive function has received increased attention in clinical and motor skill research.This is not surprising given the growing body of scientific evidence on the importance of proprioceptive information for controlling nearly all facets of human movement;from standing to performing highly skilled movement patterns 展开更多
关键词 surprising skill performing discrimination validity Commentary on by Han et al selecting reproduction modality
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参考文献著录时“等”的西文应使用“et al.”
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作者 陈浩元 《编辑学报》 CSSCI 北大核心 2019年第2期133-133,共1页
在采用作者-出版年制著录参考文献时,不少期刊对'等'的西文使用了'et al'。这种用法是错误的,应使用'et al.'。GB/T 7714—2015《信息与文献参考文献著录规则》10. 2. 2规定:'正文中引用多著者文献时,对欧... 在采用作者-出版年制著录参考文献时,不少期刊对'等'的西文使用了'et al'。这种用法是错误的,应使用'et al.'。GB/T 7714—2015《信息与文献参考文献著录规则》10. 2. 2规定:'正文中引用多著者文献时,对欧美著者只需标注第一个著者的姓,其后附‘et al.’;对于中国著者应标注第一著者的姓名,其后附‘等’字。姓氏与‘et al.’‘等’之间留适当空隙。' 展开更多
关键词 ET al 缩写点 参考文献著录
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Erratum: Regarding Article by Myung-Soon KO, et al.
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《Neural Regeneration Research》 SCIE CAS CSCD 2011年第22期1690-1690,共1页
In the "Ameliorative effects of human adipose tissue-derived mesenchymal stem cells on myelin basic protein-induced experimental autoimmune encephalomyelitis in Lewis rats" published in Neural Regeneration Research ... In the "Ameliorative effects of human adipose tissue-derived mesenchymal stem cells on myelin basic protein-induced experimental autoimmune encephalomyelitis in Lewis rats" published in Neural Regeneration Research (Volume 6, Number 16, June 2011), there was a typesetting error in the abstract (Page 1205 line 10). 展开更多
关键词 Regarding Article by Myung-Soon KO et al
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华夏龙谱(69)——精美临河盗龙(Linheraptor exquisitus Xu et al.,2010)
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作者 钱迈平 《地质学刊》 CAS 2014年第3期407-407,共1页
2008年,内蒙古地质古生物研究所谭琳和中国科学院古脊椎动物与古人类研究所徐星带领的国际联合考察队在内蒙古巴音满都呼地区进行古生物调查期间,在上白垩统乌梁素海组风成岩中发现一具保存相当完整的驰龙骨架化石。经徐星等人研究,2... 2008年,内蒙古地质古生物研究所谭琳和中国科学院古脊椎动物与古人类研究所徐星带领的国际联合考察队在内蒙古巴音满都呼地区进行古生物调查期间,在上白垩统乌梁素海组风成岩中发现一具保存相当完整的驰龙骨架化石。经徐星等人研究,2010年正式发表研究结果,认为是一新的驰龙种类,属名取白化石发现地内蒙古巴彦淖尔市临河区,种名取自其精美的保存状态,正式命名精美临河盗龙(Linheraptor exquisitus)。 展开更多
关键词 临河 生物研究所 al 古脊椎动物 中国科学院 生物调查 乌梁素海 上白垩统
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航空航天用SiC_(p)/Al复合材料激光焊接研究进展
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作者 张建勋 王志英 +2 位作者 白嘉瑜 李振岗 刘森洋 《航空制造技术》 北大核心 2026年第4期36-48,共13页
碳化硅颗粒增强铝基复合材料(SiC_(p)/Al)凭借高比强度、低密度及低热膨胀系数等优势,在轻量化、大型化航空航天装备领域应用前景广阔。然而,其熔化焊接时易生成Al_(4)C_(3)脆性相、气孔及颗粒偏聚等缺陷,严重制约工程应用,高效可靠焊... 碳化硅颗粒增强铝基复合材料(SiC_(p)/Al)凭借高比强度、低密度及低热膨胀系数等优势,在轻量化、大型化航空航天装备领域应用前景广阔。然而,其熔化焊接时易生成Al_(4)C_(3)脆性相、气孔及颗粒偏聚等缺陷,严重制约工程应用,高效可靠焊接需求日趋迫切。从常规激光焊接、能场辅助激光焊接及添加中间层激光焊接3方面系统综述航空航天用SiC_(p)/Al复合材料激光焊接的研究现状。连续/脉冲/摆动激光焊接仅通过工艺调控优化接头性能,无法抑制脆性相生成,且工艺窗口狭窄;外场辅助(电弧、磁场、超声等)激光焊接可有效稳定熔池,减少缺陷,细化晶粒,却难以阻止界面反应发生;中间层调控激光焊接通过引入活性元素重构界面反应路径,将有害相转化为强化相,成为性能跃升的关键。最后对SiC_(p)/Al复合材料激光焊接的未来研究热点进行展望,以期为该材料在航空航天领域的规模化可靠焊接提供参考。 展开更多
关键词 SiC_(p)/al复合材料 激光焊接 外场辅助 界面调控
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不同铜含量Al-Si-Mg铸造合金的时效析出行为
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作者 周鹏飞 贲能军 +1 位作者 张小玮 惠为东 《机械工程材料》 北大核心 2026年第1期65-71,共7页
铸造了不同铜质量分数(0,0.6%,1.2%,2.1%)的Al-Si-Mg-Cu合金,并进行双级固溶(500℃×6 h+530℃×4 h,水淬)+时效(175℃保温0~96 h,空冷)的T6热处理,研究了铜含量对合金时效析出行为的影响,分析了硬度“双峰”现象的形成机制。... 铸造了不同铜质量分数(0,0.6%,1.2%,2.1%)的Al-Si-Mg-Cu合金,并进行双级固溶(500℃×6 h+530℃×4 h,水淬)+时效(175℃保温0~96 h,空冷)的T6热处理,研究了铜含量对合金时效析出行为的影响,分析了硬度“双峰”现象的形成机制。结果表明:铜质量分数不超过0.6%时合金硬度随时效时间延长先增大后减小,呈现单峰变化;铜质量分数不低于1.2%时合金出现硬度“双峰”现象,且第二个硬度峰值要略高于第一个。175℃下时效10 h后,低铜含量合金主要析出相为β′′相,时效16 h后主要析出相不变;175℃下时效10 h后,高铜含量合金主要析出相为Q′相,时效16 h后主要析出相为θ′相。高铜含量合金硬度“双峰”现象是由时效过程中析出相演变引起的,主要析出相随时效时间延长由Q′相转变为θ′相。 展开更多
关键词 al-Si-Mg-Cu合金 时效 析出相 硬度
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电弧增材制造高强度Al-Mg-Sc系合金研究进展冶金缺陷、微观组织和力学性能
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作者 马成勇 侯旭儒 +4 位作者 赵琳 阚成玲 曹洋 彭云 田志凌 《金属学报》 北大核心 2026年第1期29-46,共18页
电弧增材制造(WAAM)技术因其制造成本低、沉积效率高、成形构件无尺寸限制等特点,成为大型复杂构件一体化制造最具潜力的技术之一,尤其适用于焊接性能优异的Al-Mg-Sc系合金。基于此,本文详细综述了WAAM成形Al-Mg-Sc系合金的研究进展,包... 电弧增材制造(WAAM)技术因其制造成本低、沉积效率高、成形构件无尺寸限制等特点,成为大型复杂构件一体化制造最具潜力的技术之一,尤其适用于焊接性能优异的Al-Mg-Sc系合金。基于此,本文详细综述了WAAM成形Al-Mg-Sc系合金的研究进展,包括冶金缺陷、微观组织和成形性能。在WAAM中,通过优化丝材成分、打印工艺和引入层间搅拌摩擦加工(FSP)均能有效降低气孔率,改善微观组织和提升合金性能。成形合金最低气孔率约为0.026%;由于Sc强烈的微合金化作用,微观组织均为等轴晶,平均晶粒尺寸约为10μm,成形合金表现出优异的性能,直接时效后,合金最高抗拉强度可达470 MPa,且具有优异的塑性。然而,WAAM专用Al-Mg-Sc系合金丝材的研发、冶金缺陷形成的内在机理、粗大微米级Al3(Sc1-x,Zrx)相的调控以及多性能的探究仍需进一步解决。最后,基于机器学习在智能制造中的优势,对未来机器学习在WAAM成形中的应用进行了展望:正向性能预测与逆向成分/工艺求解,从而加速WAAM专用高强度铝合金丝材研发,并降低生产成本、缩短研制周期。 展开更多
关键词 电弧增材制造 高强度al-Mg-Sc合金 冶金缺陷 组织和性能 机器学习
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Ti含量对热镀55wt.%Al-Zn镀层组织的影响
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作者 张志坚 徐学明 +3 位作者 唐兴昌 惠洋 刘小华 李坤宇 《兰州理工大学学报》 北大核心 2026年第1期8-14,共7页
为研究Ti对热镀55wt.%Al-Zn镀层组织的影响,通过配置不同Ti含量55wt.%Al-Zn热浸镀锌铝液对钢基板进行热浸镀实验,利用光学显微镜(OM)、扫描电镜(SEM)及能谱仪(EDS),对不同Ti含量铝锌镀层的表面、截面及过渡层组织进行分析.结果表明:不... 为研究Ti对热镀55wt.%Al-Zn镀层组织的影响,通过配置不同Ti含量55wt.%Al-Zn热浸镀锌铝液对钢基板进行热浸镀实验,利用光学显微镜(OM)、扫描电镜(SEM)及能谱仪(EDS),对不同Ti含量铝锌镀层的表面、截面及过渡层组织进行分析.结果表明:不同Ti含量表面锌花组织结构基本一致,镀层表面锌花及合金层组织均由富Al相、富Zn相、富Si相及Al-Zn-Fe-Si化合物相构成;当Ti质量分数低于0.035%时,镀层锌花尺寸随Ti含量的增高而显著减小,含Ti镀层组织相对细小且致密;Ti的添加能够在镀液凝固过程中增加形核点,有助于锌花尺寸减小及细化镀层合金晶粒尺寸. 展开更多
关键词 铝锌镀层 TI含量 镀层组织 锌花 晶粒细化
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瞬态冲击载荷下Al-Cu-Mg合金的力学性能及纳米析出相演化的动力学行为
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作者 范才河 武帅 +4 位作者 胡泽艺 蒋文婷 毛垚晶 李济 钱嘉伟 《中国有色金属学报》 北大核心 2026年第1期133-144,共12页
基于瞬态冲击实验和分子动力学模拟,研究了超高应变速率下Al-Cu-Mg合金纳米析出相S′相的演变规律及动力学行为。实验结果表明,当瞬态冲击应变速率为7.0×10^(8)s^(-1)时,S′相发生了断裂,但析出相与基体边界没有变形,冲击后的抗拉... 基于瞬态冲击实验和分子动力学模拟,研究了超高应变速率下Al-Cu-Mg合金纳米析出相S′相的演变规律及动力学行为。实验结果表明,当瞬态冲击应变速率为7.0×10^(8)s^(-1)时,S′相发生了断裂,但析出相与基体边界没有变形,冲击后的抗拉强度为290.96 MPa;当瞬态冲击应变速率为3.35×10^(9)s^(-1)时,S′相发生明显弯曲变形,抗拉强度为356.59 MPa。分子动力学模拟结果表明,高应变速率下,位错快速增殖;而低剪切速率下,位错密度保持相对恒定,主要是由于瞬态冲击载荷下位错具有最大滑移速度(2.5Å/ps),从而决定了在一定的位错密度下的极限应变速率。在相同的应变速率下,当应变从8%增大到11%时,位错密度开始成倍增加,达到初始密度的20倍以上。瞬态冲击过程中大量位错连续剪切S′相,促使S′相中的原子扩散到铝基体,从而导致铝基体形貌发生改变。 展开更多
关键词 al-CU-MG合金 瞬态冲击 析出相 位错 动力学
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