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| 1 | Microstructure and mechanical optimization of probeless friction stir spot welded joint of an Al-Li alloy显示文摘In this work, a third generation Al-Li alloy has been successfully spot welded with probeless friction stir spot welding(P-FSSW), which is a variant of conventional friction stir welding. The Box-Behnken experimental design in response surface methodology(RSM) was applied to optimize the P-FSSW parameters to attain maximum tensile/shear strength of the spot joints. Results show that an optimal failure load of7.83 kN was obtained under a dwell time of 7.2 s, rotation speed of 950 rpm and plunge rate of 30 mm/min.Sufficient dwell time is essential for heat conduction, material flow and expansion of the stir zone to form a sound joint. Two fracture modes were observed, which were significantly affected by hook defect.In addition to mechanical testing, electron backscattering diffraction(EBSD) and differential scanning calorimetry(DSC) were used for microstructure evolution and property analysis. The precipitation of GP zone and Al3 Li as well as the ultrafine grains were responsible for the high microhardness in the stir zone. | Q. Chu W.Y. Li X.W. Yang J.J. Shen A. Vairis W.Y. Feng W.B. Wang | 2018 | Journal of Materials Science & Technology2018，34，10： | 12 |
| 2 | SUPERPLASTICITY AND DIFFUSION BONDING OF IN718 SUPERALLOY显示文摘The superplasticity and diffusion bonding of IN718 superalloy were studied in this article. The strain rate sensitivity index m was obtained at different temperatures and various initial strain rates using the tensile speed mutation method; m reached its maximum value 0.53 at an initial strain rate of 1×10-4s-1 at 1253K. The diffusion bonding parameters, including the bonding temperature T, pressure p, and time t, affected the mechanism of joints. When the bonded specimen with 25μm thick nickel foil interlayer was tensile at room temperature, the shear fracture of the joints with nickel foil interlayer took place at the IN718 part. Microstructure study was carried out with the bonded samples. The microstructure shows an excellent bonding at the interfaces. The optimum parameters for the diffusion bonding are: T = 1273-1323K, p = 20-30MPa, t = 45-60min. | W.B. Han K.F. Zhang B. Wang D.Z. Wu | 2007 | Acta Metallurgica Sinica(English Letters)2007，20，4： | 8 |
| 3 | Experiment and modeling of mechanical properties on iron matrix composites reinforced by different types of ceramic particles显示文摘 | J. Li B.Y. Zong Y.M. Wang W.B. Zhuang | 2010 | Materials Science & Engineering A2010，，29： | 2 |
| 4 | Effect of zirconium on the microstructure and mechanical properties of long period stacking ordered Mg 96 Gd 3 Zn 1 alloy显示文摘 | J.S. Zhang W.B. Zhang X.Q. Ruan L.P. Bian W.L. Cheng H.X. Wang C.X. Xu | 2013 | Materials Science & Engineering A2013，，： | 2 |
| 5 | Novel (Zn, Nb)-doped SnO 2 varistors显示文摘 | J.F. Wang Y.J. Wang W.B. Su H.C. Chen W.X. Wang | 2002 | Materials Science & Engineering B2002，，1： | 1 |
| 6 | High preoparative levels of serum periostin are associated with poor prognosis in patients with hepatocellular carcinoma after hepatectomy显示文摘 | Y. Lv W. Wang W.D. Jia Q.K. Sun M. Huang H.C. Zhou H.H. Xia W.B. Liu H. Chen S.N. Sun G.L. Xu | 2013 | European Journal of Surgical Oncology2013，，10： | 1 |
| 7 | 等离子喷涂纳米陶瓷热障涂层组织与性能显示文摘采用纳米陶瓷粒子团聚体粉末等离子喷涂制备纳米陶瓷热障涂层,研究了纳米陶瓷热障涂层的组织和性能.试验表明,采用纳米结构的陶瓷涂层有利于增加热障涂层的高温使用寿命. | W.Q. Wang D.Q. Sun W.B. Gong Z.Z. Xuan | 2004 | 航空制造技术2004，47，z1： | 1 |
| 8 | Effect of Al-doping on the electrochemical properties of a three-dimensionally porous lithium manganese oxide for lithium-ion batteries显示文摘 | J.L. Wang Z.H. Li J. Yang J.J. Tang J.J. Yu W.B. Nie G.T. Lei Q.Z. Xiao | 2012 | Electrochimica Acta2012，，： | 1 |
| 9 | Effects of broccoli stems and leaves meal on production performance and egg quality of laying hens显示文摘 | C.H. Hu A.Y. Zuo D.G. Wang H.Y. Pan W.B. Zheng Z.C. Qian X.T. Zou | 2011 | Animal Feed Science and Technology2011，，1： | 1 |
| 10 | Mechanical properties and thermal shock resistance of ZrB 2 –SiC ceramic toughened with graphite flake and SiC whiskers显示文摘 | X.H. Zhang Z. Wang P. Hu W.B. Han C.Q. Hong | 2009 | Scripta Materialia2009，，8： | 1 |
| 11 | A multi-faceted and automatic knowledge elicitation system (MAKES) for managing unstructured information显示文摘 | C.F. Cheung W.B. Lee W.M. Wang Y. Wang W.M. Yeung | 2010 | Expert Systems With Applications2010，，5： | 1 |
| 12 | Application of the horizontal slice of cyclic bispectrum in rolling element bearings diagnosis显示文摘 | Y. Zhou J. Chen G.M. Dong W.B. Xiao Z.Y. Wang | 2011 | Mechanical Systems and Signal Processing2011，，： | 1 |
| 13 | Three-dimensional analysis of coal barrier pillars in tailgate area adjacent to the fully mechanized top caving mining face显示文摘 | Y.M. Cheng J.A. Wang G.X. Xie W.B. Wei | 2010 | International Journal of Rock Mechanics and Mining Sciences2010，，8： | 1 |
| 14 | Strain-induced refinement and thermal stability of a nanocrystalline steel produced by surface mechanical attritiontreatment显示文摘 | W.B. Liu C. Zhang Z.X. Xia Z.G. Yang P.H. Wang J.M. Chen | 2013 | Materials Science & Engineering A2013，，： | 1 |
| 15 | Pilot Study on Adjustable Head Fall Mixer with Grids for Rapid Mixing显示文摘 | W.B. Bao S. Zhang Y.X. Zhang J.M. Wang | 2011 | Journal of Environmental Science and Engineering2011，5，7： | 0 |
| 16 | STUDY ON BIOLEACHING OF PRIMARY CHALCOPYRITE ORE WITH THERMOACIDOPHLIC ARCHAE显示文摘A high temperature-tolerating thermoacidophilic archae (TA) was isolated from water samples collected from a hot sulfur-containing spring in the Yunnan Province, China, and was used in bioleaching experiments of a low-grade chalcopyrite ore. The TA grow at temperatures ranging from 40 to 80℃, with 65℃ being the optimum temperature, and at pH values of 1.5 to 4.0, with an optimum pH value of 2.0. The bioleaching experiments of the chalcopyrite ore were conducted in both laboratory batch bioreactors and leaching columns. The results obtained from the bioreactor experiments showed that the TA bioleaching rate of copper reached 97% for a 12-day leaching period, while the bioleaching rate was 32.43% for thiobacillus ferrooxidans (Tf) leaching for the same leaching time. In the case of column leaching, tests of a two-phase leaching (196 days), that is, a two-month (56 days) Tf leaching in the first phase, followed by a 140-day TA leaching in the second phase were performed. The average leaching rate of copper achieved for the 140-day TA leaching was 195mg/(L·d), while for the control experiments, it was as low as 78mg/(L·d) for the Tf leaching, indicating that the TA possesses a more powerful oxidizing ability to the chalcopyrite than Tf. Therefore, it is suggested that the two-phase leaching process be applied to for the heap leaching operations, whereas, the TA can be used in the second phase when the temperature inside the heap has increased, and the primary copper sulfide minerals have already been partially oxidized with Tf beforehand in the first phase. | P. Zou W.B. Zhang T. Lei J.K. Wang | 2006 | Acta Metallurgica Sinica(English Letters)2006，19，5： | 0 |
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