PSI - Issue 30

ScienceDirect Available online at www.sciencedirect.com Sci nceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 30 (2020) 100–104

+7(967)913-70-84 E-mail: Horo48@yandex.ru +7(967)913-70-84 E-mail: Horo48@yandex.ru

© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the EURASTRENCOLD - 2020 guest editors © 2020 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the EURASTRENCOLD - 2020 guest editors Abstract In a wi ter period in the coal q arry of Yakutia destructions rims of wheels of heavy dump-trucks are systematically obs rve . Based on the research of structures of d formation an fractur s the mechanisms of da age accumulation of fatigue type nd on -time destructions in wi ter time hav been revealed. F r the first time, structur l forms of fatigue degr dation of metal are fixed at operating estruction on a microlevel. Features of low temperature fragmentation of structure in the ageing area of TAZ welding are detected. © 2020 The Author . Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the EURASTRENCOLD - 2020 guest editors IX Eurasian Symposium on the problems of strength and resource in low climatic temperatures (EURASTRENCOLD-2020) Fatigue deformations and destructions rims of wheels of the heavy dump-trucks Moskvitina L.V.* V.P. Larionov Institute of Physical and Technical Problems of the North, Siberian Branch, Russian Academy of Sciences, Yakutsk 677980, Russia Abstract In a winter period in the coal quarry of Yakutia destructions rims of wheels of heavy dump-trucks are systematically observed. Based on the research of structures of deformation and fractures the mechanisms of damage accumulation of fatigue type and one-time destructions in winter time have been revealed. For the first time, structural forms of fatigue degradation of metal are fixed at operating destruction on a microlevel. Features of low temperature fragmentation of structure in the ageing area of TAZ welding are detected. IX Eurasian Symposium on the problems of strength and resource in low climatic temperatures (EURASTRENCOLD-2020) Fatigue deformations and destructions rims of wheels of the heavy dump-trucks Moskvitina L.V.* V.P. Larionov Institute of Physical and Technical Problems of the North, Siberian Branch, Russian Academy of Sciences, Yakutsk 677980, Russia Keywords: the fatigue zone, welding, the plastic zone, microcracks, the quazifacete, the non -crystallography turns. Keywords: the fatigue zone, welding, the plastic zone, microcracks, the quazifacete, the non -crystallography turns. 1. Introduction In coal careers of Yakutia there were systematic breakages rims of wheels of the heavy dump-trucks M-200 (USA) in winter time. The analysis of operating destructions has demonstrated the same type character of destructions of wheel rims of tripper M-200(THE USA), which are fixed after running 15000-20000 km: the appearance of fatigue cracks in the area of tension concentrators that located in TAZ welding and one-time destruction at low air temperatures. 1. Introduction In coal care s of Yakutia there were systematic breakages rims of wheels of the heavy dump-trucks M-200 (USA) in winter time. The analysis of operating destructions has demonstrated the same type character of destructions of whe l rims of tripper M-200(THE USA), which are fixed after running 15000-20000 km: th appearance of fatigu cracks in the area of tension concentrators that located in TAZ welding and one-time destruction at low air temperatures.

* Corresponding author. Tel.: +7-000-000-0000 E-mail address: horo48@yandex.ru * Corresponding author. Tel.: +7-000-000-0000 E-mail address: horo48@yandex.ru

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the EURASTRENCOLD - 2020 guest editors 10.1016/j.prostr.2020.12.017 2452-3216 © 2020 The Authors. Published by ELSEVIER B.V. This is an open-access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of the organizers of ICIMECE2020 2452-3216 © 2020 The Authors. Published by ELSEVIER B.V. This is an open-access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of the organizers of ICIMECE2020