{"id":1213,"date":"2021-01-15T22:21:07","date_gmt":"2021-01-15T20:21:07","guid":{"rendered":"http:\/\/journals.khnu.km.ua\/vestnik\/?p=1213"},"modified":"2021-03-04T12:24:03","modified_gmt":"2021-03-04T10:24:03","slug":"%d0%be%d0%bf%d1%96%d1%80%d0%bd%d1%96%d1%81%d1%82%d1%8c-%d0%b2%d1%82%d0%be%d0%bc%d0%bd%d0%be%d0%bc%d1%83-%d1%80%d1%83%d0%b9%d0%bd%d1%83%d0%b2%d0%b0%d0%bd%d0%bd%d1%8e-%d0%b7%d0%b0-%d1%87%d0%b8%d1%81","status":"publish","type":"post","link":"https:\/\/journals.khnu.km.ua\/vestnik\/?p=1213","title":{"rendered":"\u041e\u043f\u0456\u0440\u043d\u0456\u0441\u0442\u044c \u0412\u0442\u043e\u043c\u043d\u043e\u043c\u0443 \u0440\u0443\u0439\u043d\u0443\u0432\u0430\u043d\u043d\u044e \u0437\u0430 \u0447\u0438\u0441\u0442\u043e\u0433\u043e \u0437\u0433\u0438\u043d\u0443 \u0442\u0430 \u0442\u0432\u0435\u0440\u0434\u0456\u0441\u0442\u044c \u0442\u043e\u043d\u043a\u043e\u043b\u0438\u0441\u0442\u043e\u0432\u043e\u0433\u043e \u043c\u0430\u0442\u0435\u0440\u0456\u0430\u043b\u0443 \u0437\u0456 \u0441\u043f\u043b\u0430\u0432\u0443 zr-1%nb \u043f\u0456\u0441\u043b\u044f \u043c\u043e\u0434\u0438\u0444\u0456\u043a\u0443\u0432\u0430\u043d\u043d\u044f \u043f\u0440\u0438\u043f\u043e\u0432\u0435\u0440\u0445\u043d\u0435\u0432\u043e\u0433\u043e \u0448\u0430\u0440\u0443 \u0434\u043e\u043c\u0456\u0448\u043a\u0430\u043c\u0438 \u043f\u0440\u043e\u043d\u0438\u043a\u043d\u0435\u043d\u043d\u044f"},"content":{"rendered":"

\u041e\u041f\u0406\u0420\u041d\u0406\u0421\u0422\u042c \u0412\u0422\u041e\u041c\u041d\u041e\u041c\u0423 \u0420\u0423\u0419\u041d\u0423\u0412\u0410\u041d\u041d\u042e \u0417\u0410 \u0427\u0418\u0421\u0422\u041e\u0413\u041e \u0417\u0413\u0418\u041d\u0423 \u0422\u0410 \u0422\u0412\u0415\u0420\u0414\u0406\u0421\u0422\u042c \u0422\u041e\u041d\u041a\u041e\u041b\u0418\u0421\u0422\u041e\u0412\u041e\u0413\u041e \u041c\u0410\u0422\u0415\u0420\u0406\u0410\u041b\u0423 \u0417\u0406 \u0421\u041f\u041b\u0410\u0412\u0423 ZR-1%NB \u041f\u0406\u0421\u041b\u042f \u041c\u041e\u0414\u0418\u0424\u0406\u041a\u0423\u0412\u0410\u041d\u041d\u042f \u041f\u0420\u0418\u041f\u041e\u0412\u0415\u0420\u0425\u041d\u0415\u0412\u041e\u0413\u041e \u0428\u0410\u0420\u0423 \u0414\u041e\u041c\u0406\u0428\u041a\u0410\u041c\u0418 \u041f\u0420\u041e\u041d\u0418\u041a\u041d\u0415\u041d\u041d\u042f<\/p>\n

RESISTANCE TO FATIGUE FRACTURE AT A PURE BENDING AND HARDNESS OF THIN-SHEET MATERIAL FROM THE ZR-1% NB ALLOY AFTER MODIFICATION OF THE SURFACE LAYER BY ELEMENTS INTERSTITIAL<\/p>\n

<\/a> \u0421\u0442\u043e\u0440\u0456\u043d\u043a\u0438: 209-212. \u041d\u043e\u043c\u0435\u0440: \u21162, 2020 (283)<\/strong><\/p>\n

\u0410\u0432\u0442\u043e\u0440\u0438:<\/strong><\/p>\n

\u0412.\u0421. \u0422\u0420\u0423\u0428<\/p>\n

\u0424\u0456\u0437\u0438\u043a\u043e-\u043c\u0435\u0445\u0430\u043d\u0456\u0447\u043d\u0438\u0439 \u0456\u043d\u0441\u0442\u0438\u0442\u0443\u0442 \u0456\u043c. \u0413.\u0412. \u041a\u0430\u0440\u043f\u0435\u043d\u043a\u0430 \u041d\u0410\u041d\u00a0\u0423\u043a\u0440\u0430\u0457\u043d\u0438
\nV.S. TRUSH
\nKarpenko Physic-Mechanical Institute of the National Academy of Sciences of Ukraine
\nDOI:<\/strong> https:\/\/www.doi.org\/10.31891\/2307-5732-2020-283-2-209-212<\/a><\/p>\n

\u0420\u0435\u0446\u0435\u043d\u0437\u0456\u044f\/Peer review :<\/strong> 18.04.2020 \u0440.
\n\u041d\u0430\u0434\u0440\u0443\u043a\u043e\u0432\u0430\u043d\u0430\/Printed :<\/strong> 16.06.2020 \u0440.<\/p>\n

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\n\u041a\u043b\u044e\u0447\u043e\u0432\u0456 \u0441\u043b\u043e\u0432\u0430: <\/strong>\u0446\u0438\u0440\u043a\u043e\u043d\u0456\u0454\u0432\u0438\u0439 \u0441\u043f\u043b\u0430\u0432, \u0433\u0430\u0437\u043e\u0432\u0435 \u0441\u0435\u0440\u0435\u0434\u043e\u0432\u0438\u0449\u0435, \u043f\u0440\u0438\u043f\u043e\u0432\u0435\u0440\u0445\u043d\u0435\u0432\u0438\u0439 \u0448\u0430\u0440, \u043a\u0438\u0441\u0435\u043d\u044c, \u0432\u0442\u043e\u043c\u043d\u0430 \u0434\u043e\u0432\u0433\u043e\u0432\u0456\u0447\u043d\u0456\u0441\u0442\u044c, \u0447\u0438\u0441\u0442\u0438\u0439 \u0437\u0433\u0438\u043d.<\/p>\n

\u0420\u043e\u0437\u0448\u0438\u0440\u0435\u043d\u0430 \u0430\u043d\u043e\u0442\u0430\u0446\u0456\u044f \u0430\u043d\u0433\u043b\u0456\u0439\u0441\u044c\u043a\u043e\u044e \u043c\u043e\u0432\u043e\u044e<\/strong><\/p>\n

A special place in nuclear energy is occupied by structural materials for the core of nuclear reactors. Such materials include, first of all, zirconium alloys. During operation, zirconium products experience fatigue loads. A significant effect on the fatigue life has a structural-phase state of the surface layer. Therefore, chemical-thermal treatment is a good tool to achieve the desired state of the surface layer. The experimental results of processing sheet material (~ 1 mm) from zirconium alloy Zr-1% Nb from an oxygen-containing medium and vacuum are presented. The differences in the hardness of the surface layer after treatments of various gaseous media (vacuum, oxygen) are shown. It was found that treatment in an oxygen-containing gas medium leads to an increase in surface hardness. It was revealed that treatment in an oxygen-containing gas medium leads to the formation of a hardness gradient in the surface layer. The distribution of oxygen in the surface layer after treatments is given. The effect of surface layer modification by oxygen from a gaseous medium on fatigue life under symmetric pure bending of a sheet material (~ 1 mm) made of zirconium alloy Zr-1% Nb is considered. It was experimentally confirmed that the presence of a strengthened surface layer with oxygen leads to an increase in the number of cycles to failure. It was shown that the fatigue life of the studied material enriched with oxygen is sensitive to the level of strain amplitude. It has been established that by decreasing the strain amplitude (\u00b1e\u0430<\/sub> = 0.9% … 0.7%) with symmetric clean bending, the number of cycles to failure increases with respect to the machined in vacuum at the same temperature and time parameters. The proposed treatment has several advantages over other methods. Saturation with oxygen from a controlled gas environment provides the processing of parts of complex configuration and reproducibility of the treatment results. The results obtained during the study allow us to conclude that it is promising to use such a lead treatment in the process of final heat treatment of zirconium sheet material.
\nKey words:<\/strong> zirconium alloy, gaseous medium, surface layer, oxygen, fatigue life, pure bending.<\/p>\n

References<\/strong><\/p>\n

    \n
  1. Lemaignan C. Zirconium Alloys in Nuclear Applications \/ Lemaignan C. and Motta A.T. \/\/ Materials Science and Technology. \u2013 2006. \u2013 P. 2\u201351.<\/li>\n
  2. Yadernaya energetika. Glava 2. Yadernaya energetika : [uchebnoe posobie \/ Azarenkov N.A., Bulavin L.A., Zalyubovskij I.I., Kirichenko V. G., Neklyudov I. M.]. \u2013 H. : HNU imeni V. N. Karazina, 2012. \u2013 535 s.<\/li>\n
  3. Lee D. Effect of oxygen on the fatigue behavior of Zircaloy \/ D. Lee, P.T. Hill \/\/ Journal of Nuclear Materials 60. \u2013 1976. \u2013 P. 227\u2013230.<\/li>\n
  4. Trush V. Effect oxidation and nitriding on the properties of zirconium alloys \/ V.\u00a0Trush \/\/ Eastern-European Journal of Enterprise Technologies. \u2013 2017. \u2013 2\/11 (86) \u2013 P. 34\u201342.<\/li>\n
  5. Chernyaeva, T.P., Stukalov, A.I., & Gritsina, V.M. (2002). Effect of oxygen on the mechanical properties of zirconium. Problems of Atomic Science and Technology. 1(12). 96\u2013102.<\/li>\n
  6. Nikulin, S.A., Rozhnov, A.B., & Gusev, A.Yu., et al. (2004). Fracture resistance of Zr-Nb alloys under low-cycle fatigue tests. Journal of Nuclear Materials, 446, 1\u20133, 10\u201314.<\/li>\n
  7. Jin Zhang, Artem R. Oganov, Xinfeng Li, Huafeng Dong, and Qingfeng Zeng. Novel compounds in the Zr-O system, their crystal structures and mechanical properties. Phys. Chem. Phys., 2015.<\/li>\n
  8. Anghel C. Modified oxygen and hydrogen transport in Zr-based oxides. Doctoral Thesis Division of Corrosion Science Department of Materials Science and Engineering Royal Institute of Technology. Stockholm, Sweden, 2006. 256\u00a0p.<\/li>\n
  9. Gribaudo L., Arias D., Abriata J. The N-Zr (Nitrogen-Zirconium) system. Journal of Phase Equilibria. 1994. Vol.\u00a015. No. 4. P.\u00a0441\u2013449.<\/li>\n<\/ol>\n

     <\/p>\n","protected":false},"excerpt":{"rendered":"

    \u041e\u041f\u0406\u0420\u041d\u0406\u0421\u0422\u042c \u0412\u0422\u041e\u041c\u041d\u041e\u041c\u0423 \u0420\u0423\u0419\u041d\u0423\u0412\u0410\u041d\u041d\u042e \u0417\u0410 \u0427\u0418\u0421\u0422\u041e\u0413\u041e \u0417\u0413\u0418\u041d\u0423 \u0422\u0410 \u0422\u0412\u0415\u0420\u0414\u0406\u0421\u0422\u042c \u0422\u041e\u041d\u041a\u041e\u041b\u0418\u0421\u0422\u041e\u0412\u041e\u0413\u041e \u041c\u0410\u0422\u0415\u0420\u0406\u0410\u041b\u0423 \u0417\u0406 \u0421\u041f\u041b\u0410\u0412\u0423 ZR-1%NB \u041f\u0406\u0421\u041b\u042f \u041c\u041e\u0414\u0418\u0424\u0406\u041a\u0423\u0412\u0410\u041d\u041d\u042f \u041f\u0420\u0418\u041f\u041e\u0412\u0415\u0420\u0425\u041d\u0415\u0412\u041e\u0413\u041e \u0428\u0410\u0420\u0423 \u0414\u041e\u041c\u0406\u0428\u041a\u0410\u041c\u0418 \u041f\u0420\u041e\u041d\u0418\u041a\u041d\u0415\u041d\u041d\u042f RESISTANCE TO FATIGUE FRACTURE AT A PURE BENDING AND HARDNESS OF THIN-SHEET MATERIAL FROM THE ZR-1% NB ALLOY AFTER MODIFICATION OF THE SURFACE LAYER BY ELEMENTS INTERSTITIAL \u0421\u0442\u043e\u0440\u0456\u043d\u043a\u0438: 209-212. \u041d\u043e\u043c\u0435\u0440: \u21162, 2020 (283) \u0410\u0432\u0442\u043e\u0440\u0438: \u0412.\u0421. \u0422\u0420\u0423\u0428 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[15],"tags":[],"_links":{"self":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts\/1213"}],"collection":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1213"}],"version-history":[{"count":3,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts\/1213\/revisions"}],"predecessor-version":[{"id":4065,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=\/wp\/v2\/posts\/1213\/revisions\/4065"}],"wp:attachment":[{"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/journals.khnu.km.ua\/vestnik\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}