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| 1 | Inhomogeneity of microstructure and mechanical properties in the nugget of friction stir welded thick 7075 aluminum alloy joints显示文摘In this study, 20 mm thick AA7075-T6 alloy plates were joined by friction stir welding. The microstructure and mechanical properties of the nugget zone along the thickness direction from the top to the bottom was investigated. The results showed that the microstructure including the grain size, the degree of dynamic recrystallization, the misorientation angle distribution and the precipitation phase containing its size, type and content exhibited a gradient distribution along the thickness direction. The testing results of mechanical properties of the slices showed that the nugget was gradually weakened along the depth from the top to the bottom. The maximum ultimate tensile strength, yield strength and elongation of the slice in the nugget top-middle are obtained, which are 415 MPa, 255 MPa and 8.1%, respectively. | Yuqing Mao Liming Ke Yuhua Chen Fencheng Liu Li Xing | 2018 | Journal of Materials Science & Technology2018，34，1： | 10 |
| 2 | High strength and ductility of 34CrNiMo6 steel produced by laser solid forming显示文摘Because of the excellent mechanical properties of 34 CrNiMo6 steel, it is widely used in high-value components. Many conventional approaches to strengthening-steels typically involve the loss of useful ductility.In this study, 34 CrNiMo6 Steel having high strength and ductility is produced by laser solid forming(LSF)with a quenching-tempering(QT) treatment. Tempering of bainite is mainly by solid phase transformation in the previous LSF layers during the LSF process. The stable microstructure of LSF consists of ferrite and fine carbides. The microstructure transfers to tempered sorbite after heat-treatment. The tensile properties of the LSF steel meet those of the wrought standard. The UTS and elongation of LSF sample at 858 MPa, 19.2%, respectively, are greater than those of the wrought. The QT treatment enhanced the ultimate tensile strength and yield strength of the LSF sample. The ultimate tensile strength, yield strength, reduction in area, and elongation of the LSF+QT sample at 980 MPa, 916 MPa, 58.9%, and 13.9%,respectively, are greater than those of the wrought standard. The yield strength of the LSF+QT sample is approximately 1.27 times that of the wrought. The LSF samples failed in a ductile fracture mode, while the LSF+QT samples showed mixed-mode failure. The defects have only a small effect on the tensile properties owing to the excellent ductility of the LSF sample. | Chunping Huang Xin Lin Fencheng Liu Haiou Yang Weidong Huang | 2019 | Journal of Materials Science & Technology2019，35，2： | 6 |
| 3 | The effect of laser scanning path on microstructures and mechanical properties of laser solid formed nickel-base superalloy Inconel 718显示文摘 | Fencheng Liu Xin Lin Chunping Huang Menghua Song Gaolin Yang Jing Chen Weidong Huang | 2010 | Journal of Alloys and Compounds2010，，： | 1 |
| 4 | Laser solid forming Zr-based bulk metallic glass显示文摘 | Gaolin Yang Xin Lin Fencheng Liu Qiao Hu Liang Ma Jinfu Li Weidong Huang | 2011 | Intermetallics2011，，： | 1 |
| 5 | Effect of overlap rate on recrystallization behaviors of Laser Solid Formed Inconel 718 superalloy显示文摘 | Jun Cao Fencheng Liu Xin Lin Chunping Huang Jing Chen Weidong Huang | 2013 | Optics and Laser Technology2013，，： | 1 |
| 6 | Improvement of corrosion resistance of pure magnesium via vacuum pack treatment显示文摘 | Liu Fencheng Liang Wei Zhao Xingguo | 2008 | Journal of Alloys and Compounds2008，461，12： | 1 |
| 7 | Microstructure and residual stress of laser rapid formed Inconel 718 nickel-base superalloy显示文摘 | Fencheng Liu Xin Lin Gaolin Yang Menghua Song Jing Chen Weidong Huang | 2010 | Optics and Laser Technology2010，，： | 1 |
| 8 | Microstructure and mechanical property of multi-walled carbon nanotubes reinforced aluminum matrix composites fabricated by friction stir processing显示文摘 | Qiang Liu Liming Ke Fencheng Liu Chunping Huang Li Xing | 2013 | Materials and Design2013，，： | 1 |
| 9 | Overexpression of ADP‐ribosylation factor 1 in human gastric carcinoma and its clinicopathological significance显示文摘 | Paul Y.Lin Chung‐YingTsai Cheng‐YiChen Yi‐FenCheng YingLiang Sheng‐MingWu I‐HsiaoChung Kwang‐HueiLin | 2012 | Cancer Sci2012，，6： | 1 |
| 10 | Effect of plunge speeds on hook geometries and mechanical properties in friction stir spot welding of A6061-T6 sheets显示文摘 | Xiao Song Liming Ke Li Xing Fencheng Liu Chunping Huang | 2014 | The International Journal of Advanced Manufacturing Technology (-)2014，，9： | 1 |
| 11 | Effect of tool pin eccentricity on microstructure and mechanical properties in friction stir welded 7075 aluminum alloy thick plate显示文摘 | Mao Yuqing Ke Liming Liu Fencheng | 2014 | Materials and Design2014，62，： | 1 |
| 12 | Recrystallization and Its Influence on Microstructures and Mechanical Properties of Laser Solid Formed Nickel Base Superalloy Ineonel 718 显示文摘 | Liu Fencheng Lin Xin Yang Gaolin | 2011 | Rare Metals2011，30，1： | 1 |
| 13 | Microstructure and residual stress of laser rapid formed Inconel 718 nikel-base superalloy 显示文摘 | Liu Fencheng Lin Xin Gaolin Yang | 2011 | Optics & Laser Technology2011，43，： | 1 |
| 14 | Microstructure and mechanical property of multi-walled carbon nanotubes reinforced aluminum matrix composites fabricated by friction stir processing显示文摘 | Qiang Liu Liming Ke Fencheng Liu Chunping Huang Li Xing | 2013 | Materials and Design2013，，： | 1 |
| 15 | Laser solid forming Zr-based bulk metallic glass显示文摘 | Gaolin Yang Xin Lin Fencheng Liu Qiao Hu Liang Ma Jinfu Li Weidong Huang | 2011 | Intermetallics2011，，： | 1 |
| 16 | Micro- structure and residual stress of laser rapid formed Inconel 718 nickel-base superalloy 显示文摘 | Liu Fencheng Lin Xin Yang Gaolin | 2011 | Optics & Laser Technology2011，43，： | 1 |
| 17 | Clonal variation in growth,PSII photochemical activity and polar metabolites in Pinus elliottii×P.caribaea显示文摘Pinus elliottii×P.caribaea is a widely planted commercial tree hybrid in South China.To investigate the potential of physiological parameters for clonal selection,cuttings of three clones(EH3,EH4 and EH5)and a control were grown in phosphorus treated pots.Significant variations to phosphorous,photosystem II activity and polar metabolite abundance in needles were noted among clones.Clone EH5 was the most P-responsive and had maximum height growth.The highest maximum quantum yield of PSII in the dark(F_(v)/F_(m)),maximum quantum yield of PSII in the light(F_(v)'/F_(m)')and the actual PSII efficiency(Φ_(PSII))values were also found in EH5.A total of 64 polar metabolites were identified,21 were regulated by phosphorous,while 28 accumulated differentially among the three clones.There were few overlapping responsive metabolites to phosphorous fertilization.In EH5,the abundance of maltotriitol,neohesperidin and raffinose were highest,whereas galactinol and shikimic acid were lower compared with EH3 and EH4.The results reveal that physiological traits were genetically controlled and might be useful for selecting clones with high phosphorous utilization efficiency. | Wenbing Guo Fencheng Zhao Yang Liu Zhen Li Huishan Wu Yiliang Li Fangyan Liao | 2022 | Journal of Forestry Research2022，33，1： | 0 |
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