IMECH-IR  > 非线性力学国家重点实验室
Hydrogen effects on mechanical property and microstructure of a Zr-based metallic glass composite
Duan GH; Jiang MQ(蒋敏强); Liu XF(刘兴发); Dai LH(戴兰宏); Li JX
Corresponding AuthorLi, J. X.(jxli65@ustb.edu.cn)
Source PublicationJOURNAL OF NON-CRYSTALLINE SOLIDS
2019-09-15
Volume520Pages:6
ISSN0022-3093
AbstractEffects of hydrogen on the mechanical property and microstructure evolution are investigated on a Zr-based metallic glass composite contains both metallic glass matrix and body centered cubic (bcc) dendrite crystal. The compressive strength to failure descreased from 2.2 GPa to 1.9 GPa; the fracture strain decreased from 39% to 26%. The composite retains a moderate compressive strength and strain after hydrogenation. The composite shows certain resistance of hydrogen embrittlement. Neither nanocrystallization in amorphous matrix nor amorphization in bcc dendrite crystal is detected. But there are so many stacking faults in the bcc dendrite crystal after hydrogen charging. Hydrogen lowers the value of stacking fault energy and promotes planar slip of the dendrite crystal. Planar slip and slip localization accelerate the deformation of the dendrite crystal and lead to premature fracture of the composite. The experimental results are consistent with the hydrogen enhanced local plasticity mechanism of hydrogen embrittlement.
KeywordMetallic glass composite Hydrogen embrittlement Mechanical property Stacking faults
DOI10.1016/j.jnoncrysol.2019.119464
Indexed BySCI ; EI
Language英语
WOS IDWOS:000474675200009
WOS KeywordENHANCED LOCALIZED PLASTICITY ; INDUCED AMORPHIZATION ; EMBRITTLEMENT ; FRACTURE ; DEFORMATION ; PHASE ; BEHAVIOR ; DAMAGE
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics ; Materials Science, Multidisciplinary
Funding ProjectNational Nature Science Foundation of China[Nos.U1760203] ; National Nature Science Foundation of China[11522221] ; National Nature Science Foundation of China[51571029]
Funding OrganizationNational Nature Science Foundation of China
Classification一类
Ranking2
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79420
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Duan GH,Jiang MQ,Liu XF,et al. Hydrogen effects on mechanical property and microstructure of a Zr-based metallic glass composite[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2019,520:6.
APA Duan GH,蒋敏强,刘兴发,戴兰宏,&Li JX.(2019).Hydrogen effects on mechanical property and microstructure of a Zr-based metallic glass composite.JOURNAL OF NON-CRYSTALLINE SOLIDS,520,6.
MLA Duan GH,et al."Hydrogen effects on mechanical property and microstructure of a Zr-based metallic glass composite".JOURNAL OF NON-CRYSTALLINE SOLIDS 520(2019):6.
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