Effect of hydrogen on the structural and phase state and the deformation behavior of the ultrafine-grained Zr–1Nb alloy; Journal of Alloys and Compounds; Vol. 645, iss. 1 suppl. : Proceedings from the 14th International Symposium on Metal-Hydrogen Systems: Fundamentals and Applications, 2014 (MH2014)
| Parent link: | Journal of Alloys and Compounds Vol. 645, iss. 1 suppl. : Proceedings from the 14th International Symposium on Metal-Hydrogen Systems: Fundamentals and Applications, 2014 (MH2014).— 2015.— [P. S271-274] |
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| Hovedforfatter: | |
| Institution som forfatter: | |
| Andre forfattere: | , |
| Summary: | Title screen The formation of an ultrafine-grained structure with predominantly high-angle grain boundaries and an average grain size of grain-subgrain structure elements of 0.4 lm in zirconium alloys was shown by electron microscopy and X-ray diffraction analysis. The formation of such structure was found to result in the significant increase of the ultimate and yield strengths in comparison with the initial fine-grained state. The strength characteristics of ultrafine-grained Zr-1Nb-0.22H alloy are higher than the corresponding characteristics of the Zr-1Nb alloy. The presence of hydrogen in the solid solution of the ultrafine-grained Zr-1Nb-0.22H alloy during tension at room temperature is found to prevent the development of plastic deformation localization on the meso- and macrolevels and to increase the effect of strain hardening and deformation of uniform extension. At elevated temperatures, the presence of hydrogen reduces the resistance to deformation localization on the macrolevel and the deformation to failure in tensile tests. |
| Sprog: | engelsk |
| Udgivet: |
2015
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| Fag: | |
| Online adgang: | http://earchive.tpu.ru/handle/11683/35973 http://dx.doi.org/10.1016/j.jallcom.2014.12.244 |
| Format: | Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=645830 |
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