{"title":"Editorial Committee of The Chinese Journal of Nonferrous Metals","authors":"","doi":"10.3724/sp.j.7103321328","DOIUrl":"https://doi.org/10.3724/sp.j.7103321328","url":null,"abstract":"","PeriodicalId":35634,"journal":{"name":"Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80422025","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}
Zhenjun Wang, L. Tian, C. Cai, H. Yu, Zhifeng Xu, Gui Wang, M. Dargusch
{"title":"Progressive damage and elastic-plastic behavior of CF/Al composites during transverse tensile process CF/Al复合材料横向拉伸渐进损伤与弹塑性力学行为","authors":"Zhenjun Wang, L. Tian, C. Cai, H. Yu, Zhifeng Xu, Gui Wang, M. Dargusch","doi":"10.19476/j.ysxb.1004.0609.2019.03.04","DOIUrl":"https://doi.org/10.19476/j.ysxb.1004.0609.2019.03.04","url":null,"abstract":"The unidirectional graphite fiber M40J reinforced aluminum alloy composites (CF/Al composites) was fabricated by vacuum assisted pressure infiltration technology. The elastic-plastic mechanical behavior and the damage evolution behavior of composites was evaluated using micromechanics FEM and tensile testing method. According to the numerical simulation and experimental results, the influence of interface property on the mechanical properties of the campsites during transverse tensile process was also analyzed. The results show that the micromechanical representative volume element (RVE) model established can evaluate the stress-strain behavior of the composites in transverse tensile process. The occurrences of initial damage, damage accumulation and failure in the interface and matrix alloy lead to the fracture of the composites. There is an important influence of interface property on the ductile damage evolution and failure of matrix alloy, which eventually determined the transverse fracture mechanical properties of the CF/Al composites.","PeriodicalId":35634,"journal":{"name":"Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75300785","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":"Superplasticity of nanostructured nickel alloy and composite fabricated by electrodeposition","authors":"Wang Yong","doi":"10.4028/0-87849-435-9.607","DOIUrl":"https://doi.org/10.4028/0-87849-435-9.607","url":null,"abstract":"A nanostructured nickel alloy and a Ni/Si3N4(w) composite were fabricated by pulse current electrodeposition,and their superplastic tensile deformation behaviors were investigated at strain rates ranging from 1×10?3 to 2×10?2 s?1 and temperatures ranging from 673 to 823 K.Optimal superplastic condition and the maximum elongation were determined.The results show that the maximum elongation of Ni-Co alloy can reach the value of 279% at strain rate of 5×10?3 s?1 and temperature 773 K,the maximum elongation of Ni/ Si3N4(w) composite is 635% at strain rate of 1×10?2 s?1 and temperature 713 K.Scanning electron microscopy and transmission electron microscopy were employed to examine the microstructures of the as-deposited and deformed samples.The superplastic behavior of the alloy and composite were compared with and discussed in terms of their grain growth behavior and accommodation mechanisms.","PeriodicalId":35634,"journal":{"name":"Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82108116","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":"Microstructural Evolution of Semi-Solid AZ61 Magnesium Alloy during Reheating Process","authors":"Yan Hong, Zhang Fayun","doi":"10.4028/3-908451-26-4.275","DOIUrl":"https://doi.org/10.4028/3-908451-26-4.275","url":null,"abstract":"AZ31 magnesium semisolid billets were prepared by a self-designed wavelike vibration sloping plate device,and an ideal globular or near-globular microstructure can be obtained by wavelike vibration sloping plate technique.The results show that,with the increase of reheating temperature and the prolongation of holding time,the liquid fraction in semisolid microstructure increases,and the solid phase grows gradually and spheroidises.The reheating microstructures at 580 ℃ and 610 ℃ are not suitable for thixoforming.The optimum reheating process parameters suitable for thixoforming are 590 ℃ for 40-60min or 600 ℃ for 30 min,under which the average grain diameter is 58-61 μm and solid fraction is about 87%.The lattice diffusion resulting in the variation of grain size is the dominant atomic diffusion mechanism of reheating.The solid-liquid interfacial tension results in the variation of globular or near-globular shape.","PeriodicalId":35634,"journal":{"name":"Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85540344","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":"Microstructure formation mechanism of (Al_2O_3+TiB_2+Al_3Ti)/Al composites fabricated by reaction hot pressing","authors":"Wang Gui-song","doi":"10.4028/0-87849-456-1.1439","DOIUrl":"https://doi.org/10.4028/0-87849-456-1.1439","url":null,"abstract":"Two (Al_2O_3+TiB_2+Al_3Ti)/Al composites were made from Al-B_2O_3-TiO_2 and Al-B-TiO_2 raw powders by hot pressing. The microstructure of the two composites was analyzed by OM, SEM and TEM. The results show that coarse Al_3Ti blocks with size of several tens of micrometers are formed during hot pressing, and the fine equiaxed Al_2O_3 and hexagon TiB_2 particulates are formed simultaneously. On the other hand, there are fine Al_3Ti precipitates in the composite fabricated from Al, B and TiO_2 powders. After extrusion, the coarse Al_3Ti blocks are broken into small pieces. Al_2O_3 particles are formed on the surface of TiO_2 or B_2O_3 powder, TiB_2 particles are formed on B or B_2O_3 powders, and they are fine and dispersively distributed. The formation of coarse Al_3Ti block is resulted from long-distance diffusion of Ti in liquid Al.","PeriodicalId":35634,"journal":{"name":"Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76646971","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":"Dry friction and wear properties of aluminum matrix composites reinforced with 3D-network ceramics","authors":"Yao Jun-ping","doi":"10.4028/0-87849-959-8.1701","DOIUrl":"https://doi.org/10.4028/0-87849-959-8.1701","url":null,"abstract":"A new 3D-network ceramics(skeleton) reinforced aluminum alloy composites was designed and fabricated. The dry friction and wear behaviors of aluminum matrix composites were investigated. The friction coefficients and wear rates of the aluminum alloy and composites reinforced with ceramics of different volume fractions were measured at various temperatures and loads. The worn surface morphologies of the aluminum alloy and its composites were observed with a scanning electron microscope, and the effect of the 3D-network ceramics on the wear mechanisms were discussed accordingly. As the results, the composites has much better wear-resistance than the aluminum alloy has. The improvement in the wear-resistance of the composites became more prominent at higher ceramics volume fraction, high temperature, and large normal load. Moreover, the composites registered higher and more stable friction coefficients with increasing normal load. This was more apparent at elevated temperature. It was supposed that the 3D network ceramics was able to support the load applied onto the sliding surface and not only to restrict the plastic deformation and high-temperature softening of the alloy matrix, but also to protect the oxide film(Al_2O_3) on the worn surface, thus the composites showed greater improvement wear-resistance than the aluminum alloy did.","PeriodicalId":35634,"journal":{"name":"Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80887434","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}