Pub Date : 2016-09-01DOI: 10.11868/J.ISSN.1001-4381.2016.09.019
Wang Yun-fei, Z. Peng, Liu Gang, Zhao Yan, Bao Jianwen
{"title":"Progress in Research on Polyimide Composite Bushings for Aeroengine","authors":"Wang Yun-fei, Z. Peng, Liu Gang, Zhao Yan, Bao Jianwen","doi":"10.11868/J.ISSN.1001-4381.2016.09.019","DOIUrl":"https://doi.org/10.11868/J.ISSN.1001-4381.2016.09.019","url":null,"abstract":"","PeriodicalId":16195,"journal":{"name":"Journal of Materials Engineering","volume":"159 1","pages":"121-128"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75126315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-08-01DOI: 10.11868/J.ISSN.1001-4381.2016.08.019
Lin Pei-huan, Z. Yong, Wang Tao, Z. Yazhou, Li Zhao, Jia Chonglin, Qu Xuan-hui
{"title":"Research Progress on Continuous SiC Fiber Reinforced Metal Matrix Composite","authors":"Lin Pei-huan, Z. Yong, Wang Tao, Z. Yazhou, Li Zhao, Jia Chonglin, Qu Xuan-hui","doi":"10.11868/J.ISSN.1001-4381.2016.08.019","DOIUrl":"https://doi.org/10.11868/J.ISSN.1001-4381.2016.08.019","url":null,"abstract":"","PeriodicalId":16195,"journal":{"name":"Journal of Materials Engineering","volume":"21 1","pages":"121-129"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75382804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
With the increasing size of wind turbine blades,the need for more sophisticated load control techniques has induced the interest for aerodynamic control systems with build-in intelligence on the blades.New structural concepts have emerged where multifunctional materials,exhibiting a strong coupling between its mechanical response and its electrical behaviour,which work as sensors and actuators,are embedded or bonded to composite blades for high-performance structural applications.A finite element model of the smart blade for wind turbines is provided.Numerical analysis is performed by using finite element method,which is used to calculate the time response of the model.The displacement and stress response from the piezoelectric actuator are obtained to control the vibration,and compared with the fluid calculation results of the aerodynamic stress.By using this model,an active vibration method which effectively suppresses the vibrations of the smart blade is designed.
{"title":"Designing of smart composite materials wind turbine blade and finite element analysis","authors":"Yin-hu Qiao, Jiang Han, Chunyan Zhang, Jieyan Chen","doi":"10.3969/J.ISSN.1001-4381.2013.05.012","DOIUrl":"https://doi.org/10.3969/J.ISSN.1001-4381.2013.05.012","url":null,"abstract":"With the increasing size of wind turbine blades,the need for more sophisticated load control techniques has induced the interest for aerodynamic control systems with build-in intelligence on the blades.New structural concepts have emerged where multifunctional materials,exhibiting a strong coupling between its mechanical response and its electrical behaviour,which work as sensors and actuators,are embedded or bonded to composite blades for high-performance structural applications.A finite element model of the smart blade for wind turbines is provided.Numerical analysis is performed by using finite element method,which is used to calculate the time response of the model.The displacement and stress response from the piezoelectric actuator are obtained to control the vibration,and compared with the fluid calculation results of the aerodynamic stress.By using this model,an active vibration method which effectively suppresses the vibrations of the smart blade is designed.","PeriodicalId":16195,"journal":{"name":"Journal of Materials Engineering","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83152075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-03-01DOI: 10.3969/J.ISSN.1001-4381.2013.03.015
Yuan Cheng, Hongying Yu, Ying Wang, X. Meng, D. Sun
Stress corrosion cracking susceptibility of X80 pipeline steel was investigated in a simulated soil solution using slow strain rate tensile(SSRT) tests.The simulated soil solution was based on the chemical compositions of alkaline Gansu soil in northwest of China.The tests were conducted at different strain rates.The fracture surfaces and secondary cracks were observed using scanning electron microscopy(SEM).The results showed that strain rates had an important role on SCC of X80 steel in simulated soil solutions.Corrosion and mechanical factors have different influences during the SCC processes at different strain rates,which results in the variety of SCC.There was the highest SCC susceptibility at the strain rate of 1.0×10-6s-1.Combined effect of corrosion and mechanics leads to high SCC susceptibility.When the strain rates were lower than 1.0×10-6s-1,enough long corrosion time results in the corrosion of crack in this strain rate range.The crack propagation is restrained.Thus,slight decrease of SCC susceptibilities occurs.As the strain rates were higher than 1.0×10-6 s-1,SCC susceptibilities were low obviously.In this high strain rates range,the mechanical factors have more effect on SCC than corrosion factors,which mainly lead to mechanical fracture of specimens.
{"title":"Effect of Strain Rate on Stress Corrosion Cracking of X80 Pipeline Steel","authors":"Yuan Cheng, Hongying Yu, Ying Wang, X. Meng, D. Sun","doi":"10.3969/J.ISSN.1001-4381.2013.03.015","DOIUrl":"https://doi.org/10.3969/J.ISSN.1001-4381.2013.03.015","url":null,"abstract":"Stress corrosion cracking susceptibility of X80 pipeline steel was investigated in a simulated soil solution using slow strain rate tensile(SSRT) tests.The simulated soil solution was based on the chemical compositions of alkaline Gansu soil in northwest of China.The tests were conducted at different strain rates.The fracture surfaces and secondary cracks were observed using scanning electron microscopy(SEM).The results showed that strain rates had an important role on SCC of X80 steel in simulated soil solutions.Corrosion and mechanical factors have different influences during the SCC processes at different strain rates,which results in the variety of SCC.There was the highest SCC susceptibility at the strain rate of 1.0×10-6s-1.Combined effect of corrosion and mechanics leads to high SCC susceptibility.When the strain rates were lower than 1.0×10-6s-1,enough long corrosion time results in the corrosion of crack in this strain rate range.The crack propagation is restrained.Thus,slight decrease of SCC susceptibilities occurs.As the strain rates were higher than 1.0×10-6 s-1,SCC susceptibilities were low obviously.In this high strain rates range,the mechanical factors have more effect on SCC than corrosion factors,which mainly lead to mechanical fracture of specimens.","PeriodicalId":16195,"journal":{"name":"Journal of Materials Engineering","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80742076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-01-01DOI: 10.4028/0-87849-432-4.261
Z. Xinming
The fractography of Mg-9Gd-4Y-0.6Zr alloy specimens which were tensioned at different temperatures was observed by optical and scanning electron microscopy, respectively. The results showed that different slip systems were activated at different temperatures, which was responsible for varied deformation mechanism and fracture mechanism. At 25℃, the number of enabled slip systems were few and only slip systems on basal plane were activated, and transgranular cleavage fracture was observed. At -196℃,the number of enabled slip systems increased, prismatic slips maybe occurred and low-temperature plasticity phenomenon happened, while fracture mechanism was microviod coalescence fracture. At 250, 300℃ and 350℃, multisystem slips on basal planes, prismatic planes and pyramidal planes were activated in this alloy, while fracture mechanism was also microviod coalescence fracture. At 400℃, recrystallization happened and grain-boundary sliding in new fine recrystallized grains could deform easily,which was called coarse-grain superplasticity phenomenon, and intergranular shear fracture took place.
{"title":"Fracture Mechanism Analysis of Mg-9Gd-4Y-0.6Zr Alloy from -196℃ to 400℃","authors":"Z. Xinming","doi":"10.4028/0-87849-432-4.261","DOIUrl":"https://doi.org/10.4028/0-87849-432-4.261","url":null,"abstract":"The fractography of Mg-9Gd-4Y-0.6Zr alloy specimens which were tensioned at different temperatures was observed by optical and scanning electron microscopy, respectively. The results showed that different slip systems were activated at different temperatures, which was responsible for varied deformation mechanism and fracture mechanism. At 25℃, the number of enabled slip systems were few and only slip systems on basal plane were activated, and transgranular cleavage fracture was observed. At -196℃,the number of enabled slip systems increased, prismatic slips maybe occurred and low-temperature plasticity phenomenon happened, while fracture mechanism was microviod coalescence fracture. At 250, 300℃ and 350℃, multisystem slips on basal planes, prismatic planes and pyramidal planes were activated in this alloy, while fracture mechanism was also microviod coalescence fracture. At 400℃, recrystallization happened and grain-boundary sliding in new fine recrystallized grains could deform easily,which was called coarse-grain superplasticity phenomenon, and intergranular shear fracture took place.","PeriodicalId":16195,"journal":{"name":"Journal of Materials Engineering","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2007-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85032692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1999-01-01DOI: 10.3969/J.ISSN.1001-4381.1999.07.001
Gu Jidong
Microorganisms including bacteria and fungi play an important role in the corrosion of metals and deterioration of polymeric materials Under natural conditions, a thin layer of microorganisms may adhere on surfaces forming the socalled biofilm Microbial colonization on surfaces influences the localized electrochemical characteristics of the metals, resulting in corrosion Other microbial processes inducing corrosion include microbial exopolymeric materials, microbial hydrogen and organic acids produced by the fungi Heterotrophic microorganisms utilize polymers either directly or indirectly as a source of carbon and energy, and the consequences are weakening of the polymer structure Both autotrophic and heterotrophic microorganisms are capable of deteriorating concrete and stone through production of inorganic acids and sulfur transformation respectively Prevention of biodeterioration is largely done by incorporation of biocides, but bacteria develop resistance quickly by mutation after exposure
{"title":"Microbial corrosion of metals and deterioration of polymeric materials","authors":"Gu Jidong","doi":"10.3969/J.ISSN.1001-4381.1999.07.001","DOIUrl":"https://doi.org/10.3969/J.ISSN.1001-4381.1999.07.001","url":null,"abstract":"Microorganisms including bacteria and fungi play an important role in the corrosion of metals and deterioration of polymeric materials Under natural conditions, a thin layer of microorganisms may adhere on surfaces forming the socalled biofilm Microbial colonization on surfaces influences the localized electrochemical characteristics of the metals, resulting in corrosion Other microbial processes inducing corrosion include microbial exopolymeric materials, microbial hydrogen and organic acids produced by the fungi Heterotrophic microorganisms utilize polymers either directly or indirectly as a source of carbon and energy, and the consequences are weakening of the polymer structure Both autotrophic and heterotrophic microorganisms are capable of deteriorating concrete and stone through production of inorganic acids and sulfur transformation respectively Prevention of biodeterioration is largely done by incorporation of biocides, but bacteria develop resistance quickly by mutation after exposure","PeriodicalId":16195,"journal":{"name":"Journal of Materials Engineering","volume":"260 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77153103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Pelletier, S. Jobez, Q. Saif, P. Kirat, A. Vannes
{"title":"Laser surface alloying: Mechanism of formation and improvement of surface properties","authors":"J. Pelletier, S. Jobez, Q. Saif, P. Kirat, A. Vannes","doi":"10.1007/BF02834030","DOIUrl":"https://doi.org/10.1007/BF02834030","url":null,"abstract":"","PeriodicalId":16195,"journal":{"name":"Journal of Materials Engineering","volume":"39 1","pages":"281-290"},"PeriodicalIF":0.0,"publicationDate":"1991-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84543774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of cooling rate on the austenite-ferrite phase boundary composition of a duplex stainless steel","authors":"V. Gadgil, A. Sasse, J. Swens, B. Kolster","doi":"10.1007/BF02834031","DOIUrl":"https://doi.org/10.1007/BF02834031","url":null,"abstract":"","PeriodicalId":16195,"journal":{"name":"Journal of Materials Engineering","volume":"9 1","pages":"291-297"},"PeriodicalIF":0.0,"publicationDate":"1991-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84253423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Inclusion control in a 16 Mn Steel using a combined rare earth and calcium treatment","authors":"Long‐pei Shi, Jizhi Chen, D. Northwood","doi":"10.1007/BF02834029","DOIUrl":"https://doi.org/10.1007/BF02834029","url":null,"abstract":"","PeriodicalId":16195,"journal":{"name":"Journal of Materials Engineering","volume":"118 1","pages":"273-279"},"PeriodicalIF":0.0,"publicationDate":"1991-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77390815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：