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| 1 | Hydrogen plasma diagnosis in Penning ion source by optical emission spectroscopy显示文摘 | Jin Dazhi Yang Zhonghai Tang Pingying | 2009 | Vacuum2009，83，： | 1 |
| 2 | Tomographic re- construction of ionospheric electron density based on con- straincd algebraic reconstruction technique 显示文摘 | Debao Wen Sanzhi Liu Pingying Tang | 2010 | GPS So- lut2010，14，4： | 1 |
| 3 | Effects of Mn Content on Mechanical Properties of FeCoCrNiMn_(x)(0≤x≤0.3)High-Entropy Alloys:A First-Principles Study显示文摘Effects of Mn content on mechanical properties of FeCoCrNiMn_(x)(0≤x≤0.3)high-entropy alloys(HEAs)are investigated via first-prmciples calculations combining EMTO-CPA method.Related physical parameters,including lattice constant.elastic constants,elastic modulus,Pugh’s ratio,anisotropy factors,Poisson’s ratio,Cauchy pressure,Vickers hardness,yield strength,and energy factor,are calculated as a function of Mn content.The results show that the resistances to bulk,elastic,and shear deformation decrease with increasing Mn content.Pugh’s ratio B/G indicates that the ductility of FeCoCrNiMn_(x) HEAs has a remarkable reduction between 22 and 24% of Mn content.Meanwhile,Cauchy pressure suggests that the atomic bonding transforms from metallic to directional characteristic from 22 to 24% of Mn content.Vickers hardness and yield strength of FeCoCrNiMn HEA are intrinsically larger than those of FeCoCrNi HEA.Dislocation nucleation easily occurs in FeCoCrNiMn HE A compared to FeCoCrNi HEA,and large dislocation width in FeCoCrNiMnO_(2) HE A results in low stacking-fault energy,which easily induces twinning deformation.This work provides a valuable msieht for further theoretical and experimental study on the mechanical properties of FeCoCrNiMn_(x)(0≤x≤0.3)HEAs. | Hui Xiao Yu Liu Kai Wang Zhipeng Wang Te Hu Touwen Fan Li Ma Pingying Tang | 2021 | Acta Metallurgica Sinica(English Letters)2021，34，4： | 1 |
| 4 | Tomographie reconstruction of ionospheric electron density based on constrained al- gebraic reconstruction technique 显示文摘 | WEN DEBAO LIU SANZHI TANG PINGYING | 2010 | Journal of GI:''S Solution2010，14，4： | 1 |
| 5 | Tomographic reconstruetion of ionospheric electron density based on constrained algebraic reconstruction technique显示文摘 | Debao Wen Sanzhi Liu Pingying Tang | 2010 | GPS Solut2010，，14： | 1 |
| 6 | Nucleation and growth of L1_(2)-Al_(3)RE particles in aluminum alloys:A first-principles study显示文摘The internal mechanisms of nucleation and growth of L1_(2)-AI_(3)RE(RE=Sc,Y,La-Lu) second phases in Al alloys were investigated by combining first-principles calculations with quasi-harmonic approximation(QHA).The calculated results show that the diffusion rate D_s and chemical potential AG_V increase with the increase of temperature.With the increase of atomic number,the D_s and the strain energy ΔE_(CS)increase firstly from Sc to La,and then decreases,while the calculated interface energy γ_(α/β) and ΔG_V show opposite tendency.Based on above calculated results,the critical nucleation radius R*and coarsening rate K_(LSW) are obtained from the classical nucleation theory(CNT) and LSW model of the Ostwald ripening of particles,respectively.With the increase of atomic number,the R*increases firstly,and then decreases for all planes at finite temperatures.Whereas the K_(LSW) shows opposite variation to the R^(*).From this point of view,it is reasonably speculated that Y and later RE elements can replace the expensive Sc for heat-resistance Al alloys.The solubility c_(∞) of particles is usually very small at low temperature,and there is obvious solubility only when the temperature reaches 600 K.The surface energies E_(sur) of AI_(3)RE compounds and Al solid solution are respectively larger and smaller than that of pure Al,respectively,except for the surface(001) and(110) of Al_(3)La.For all planes,with the increase of atomic number of RE,E_(sur) decreases firstly from Sc to La,and then increases linearly to Lu.These results are helpful for designing high performance heat-resistance Al alloys. | Touwen Fan Zixiong Ruan Feng Zhong Chaoyang Xie Xiaofeng Li Dongchu Chen Pingying Tang Yuanzhi Wu | 2023 | Journal of Rare Earths2023，41，7： | 0 |
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