典型文献
Evolution of micro-pores in a single crystal nickel-based superalloy during 980℃creep
文献摘要:
The evolution of micro-pores in a single crystal nickel-based superalloy during creep at 980℃/220 MPa was investigated by X-ray computed tomography.Time-dependent ex-situ 3D information including the number,volume fraction,distribution and morphology of micro-pores was analyzed.The results reveal that the significant formation and growth of micro-pores occur at the end of secondary/beginning of tertiary creep stage.The irregular large pores as well as high density pores located at strain concentration region are the major detrimental factors facilitating the creep damage.Creep failure is resulted from the connection of surface cracks induced by oxidation,and the internal cracks generated from growth and merging of micro-pores.
文献关键词:
中图分类号:
作者姓名:
Yufeng He;Shaogang Wang;Jian Shen;Dong Wang;Yuzhang Lu;Langhong Lou;Jian Zhang
作者机构:
Superalloys Division,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;School of Materials Science and Engineering,University of Science and Technology of China,Shenyang 110016,China;Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China
文献出处:
引用格式:
[1]Yufeng He;Shaogang Wang;Jian Shen;Dong Wang;Yuzhang Lu;Langhong Lou;Jian Zhang-.Evolution of micro-pores in a single crystal nickel-based superalloy during 980℃creep)[J].金属学报(英文版),2022(08):1397-1406
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Evolution,micro,pores,single,crystal,nickel,superalloy,during,creep,evolution,was,investigated,by,ray,computed,tomography,Time,dependent,ex,situ,information,including,number,volume,fraction,distribution,morphology,analyzed,results,reveal,that,significant,growth,occur,secondary,beginning,tertiary,stage,irregular,large,well,high,density,located,strain,concentration,region,are,major,detrimental,factors,facilitating,damage,Creep,failure,resulted,from,connection,surface,cracks,induced,oxidation,internal,generated,merging
AB值:
0.587994
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