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6篇 您的检索式:作者名="S.H.Song"
    题名 作者 年代 出处 被引量
1INFLUENCE OF TIN ON THE HOT DUCTILITY OF A LOW-CARBON STEEL显示文摘The influence of tin on the hot ductility of a 0. 15wt%C steel is investigated using a continuous-casting thermal simulator with three cooling rates. Tin can apparently deteriorate the hot ductility of the steel. Non-equilibrium grain boundary segregation of tin occurs during cooling and plays an important role in reducing the hot ductility of the steel. There is a critical cooling rate for the Sn segregation being between 5 and 20K/s.Z.X.Yuan J.Jia A.M.Guo D.D.Shen S.H.Song J.Liu 2003Acta Metallurgica Sinica(English Letters)2003,16,6:2
2ANTIMONY GRAIN BOUNDARY SEGREGATION AND ITS SUPPRESSION BY CERIUM IN Fe-2%Mn-Sb STRUCTURAL STEELS显示文摘Antimony grain boundary segregation in Fe-2%Mn-Sb structure steels has been studied through measurements of the ductile-brittle transition temperature in conjunction with scanning electron microscopy, Auger electron spectroscopy and secondary ion mass spectroscopy. The research result reveals that during tempering or ageing after quenching at 980C, Sb segregates to grain boundaries with both equilibrium and nonequilibrium natures and brings about temper embrittlement in the steels. Cerium can relieve temper embrittlement of the steels and its segregation to grain boundaries -05 play an important role in reducing this embrittlement.Z.X.Yuan A.M.Guo J.Liu D.D.Shen J.Jia S.H.Song 2003Acta Metallurgica Sinica(English Letters)2003,16,3:2
3Evaluation of degradation of thermal barrier coatings using impedance spectroscopy显示文摘M.D.Shawkat S.H.Song P.Xiao 0,,:1
4An impedance spectroscopy study of hightemperature oxidation of thermal barrier coatings显示文摘S.H.Song P.Xiao 0,,:1
5PHOSPHORUS GRAIN BOUNDARY SEGREGATION IN A P-DOPED 2.25Cr1Mo STEEL显示文摘Grain boundary segregation of phosphorus during tempering at 540℃ after quenching from 980℃ is examined for a P-doped 2.25Cr1Mo steel by means of Auger electron spectroscopy. The solute-boundary binding energy and the diffusion coefficient for phosphorus are determined by virtue of the measured segregation kinetics along with the equilibrium segregation theory. The obtained values of the above parameters are discussed with comparison to those found in the literature for low-alloy steels.D.D.Shen Z.X.Yuan J.Liu S.H.Song L.Q.Wen 2004Acta Metallurgica Sinica(English Letters)2004,17,5:0
6GRAIN-BOUNDARY PRECIPITATION UNDER IRRADIATION IN DILUTE BINARY ALLOYS显示文摘Irradiation-induced grain boundary segregation of solute atoms frequently bring about grain boundary precipitation of a second phase because of its making the solubility limit of the solute surpassed at grain boundaries. Until now the kinetic models for irradiation-induced grain boundary precipitation have been sparse. For this reason, we have theoretically treated grain boundary precipitation under irradiation in dilute binary alloys. Predictions ofγ'-Ni3Si precipitation at grain boundaries ave made for a dilute Ni-Si alloy subjected to irradiation. It is demonstrated that grain boundary silicon segregation under irradiation may lead to grain boundaryγ'-Ni3 Si precipitation over a certain temperature range.S.H.Song Z.X.Yuan J.Liu R.G.Faulkner 2003Acta Metallurgica Sinica(English Letters)2003,16,5:0
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