采用透射电镜和背散射电子衍射(EBSD)研究了560、600和640℃3种不同温度回火对新型系泊链钢显微组织的影响,并用电化学渗透方法研究了氢在这3种不同温度回火系泊链钢中的扩散行为.结果表明,随回火温度的升高,系泊链钢中析出的碳化物由弥散分布的细小针状向稀疏分布的椭圆状和球状转变;小角度晶界减少,大角度晶界增多;640℃回火试样的氢扩散系数比560℃回火试样的氢扩散系数增大近一个数量级,而扩散激活能仅略微减小;在相同充氢条件下,室温总可扩散氢大大减少.氢扩散行为的变化主要是由回火组织中晶界、碳化物等氢陷阱的变化所致.
参考文献
| [1] | 张明,张卫新,陶良凤,景东华.超高强度R5系泊链附件的热处理工艺[J].金属热处理,2011(04):39-40. |
| [2] | Moro I;Briottet L;Lemoine P .Hydrogen embrittlement susceptibility of a high strength steel X80[J].Materials Science and Engineering A,2010,527(27):7252-7260. |
| [3] | Song J;Curtin W A .A nanoscale mechanism of hydrogen embrittlement in metals[J].Acta Materialia,2011,59(4):1557-1569. |
| [4] | T. Zakroczymski;E. Owczarek .Electrochemical investigation of hydrogen absorption in a duplex stainless steel[J].Acta materialia,2002(10):2701-2713. |
| [5] | 王思贞,程晓英,冯佩功.回火温度对R5级系泊链钢氢扩散行为的影响[J].金属热处理,2013(09):10-15. |
| [6] | 殷匠,徐平光,ZHANG S.Y..一种超高强度低合金钢的拉伸微屈服行为的原位中子衍射研究[J].热处理,2013(06):5-9. |
| [7] | Zheng C;Huang Y;Huo C et al.Hydrogen permeation behavior and corrosion monitoring of steel in cyclic wet-dry atmospheric environment[J].Materials and Corrosion,2007,58(9):716-720. |
| [8] | 褚武扬.氢损伤与滞后断裂[M].北京:冶金工业出版社,1988 |
| [9] | 褚武扬;乔利杰.氢脆和应力腐蚀[M].北京:科学出版社,2013 |
| [10] | Frappart S;Feaugas X;Creus J et al.Study of the hydrogen diffusion and segregation into Fe-C-Mo martensitic HSLA steel using electrochemical permeation test[J].Journal of Physics and Chemistry of Solids,2010,71(10):1467-1479. |
| [11] | T. Ohmura;K. Tsuzaki;S. Matsuoka .Nanohardness measurement of high-purity Fe-C martensite[J].Scripta materialia,2001(8):889-894. |
| [12] | 杨平.电子背散射衍射技术及其应用[M].北京:冶金工业出版社,2007:7. |
| [13] | Mine Y;Tachibana K;Horita Z .Grain-boundary diffusion and precipitate trapping of hydrogen in ultrafine-grained austenitic stainless steels processed by high-pressure torsion[J].Materials Science and Engineering A,2011,528(28):8100-8105. |
| [14] | Mine Y;Tsumagari T;Horita Z;Hydrogent rapping onlattice defects produced by high-pressure torsion in Fe-0 .01 mass％ C alloy[J].Scripta Materialia,2010,63(5):552-555. |
| [15] | H. Addach;P. Bercot;M. Rezrazi .Hydrogen permeation in iron at different temperatures[J].Materials Letters,2005(11):1347-1351. |
| [16] | Haq A J;Muzaka K;Dunne D P et al.Effect of microstructure and composition on hydrogen permeation in X70 pipeline steels[J].International Journal of Hydrogen Energy,2013,38(5):2544-2556. |
| [17] | Gyu Tae Park;Sung Ung Koh;Hwan Gyo Jung;Kyoo Young Kim .Effect of microstructure on the hydrogen trapping efficiency and hydrogen induced cracking of linepipe steel[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2008(7):1865-1871. |
| [18] | 陈业新,常庆刚.20g纯净钢中氢陷阱对氢扩散系数的作用[J].金属学报,2011(05):548-552. |
| [19] | 赵荣,陈业新.氢在Q960纯净钢中的扩散[J].上海大学学报（自然科学版）,2013(01):61-66. |
| [20] | Frappart S;Oudriss A;Feaugas X et al.Hydrogen trapping in martensitic steel investigated using electrochemical permeation and thermal desorption spectroscopy[J].Scripta Materialia,2011,65(10):859-862. |
| [21] | Johnson E W;Hill M L .The diffusion of hydrogen in iron and ferritic steels[J].ACTA METALLURGICA,1955,3(1):99-101. |
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