PHASE COMPOSITION, SUBSTRUCTURE AND RESIDUAL MACROSTRESSES IN THE SURFACE LAYER OF A TAPE OBTAINED BY ELECTRIC CONTACT WELDING

The surface layer of DI50-2 cast iron after its processing by electric contact welding has been investigated by methods of X-ray diffraction and electron microscopy. A 50HVA steel strip was used as a filler material. Processing technologies were used with the creation of an intermediate layer of nic...

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Main Authors: A.I. Fomin, N.A. Pankin
Format: Article
Language:Russian
Published: Tver State University 2021-12-01
Series:Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
Subjects:
Online Access:https://physchemaspects.ru/2021/doi-10-26456-pcascnn-2021-13-802/?lang=en
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author A.I. Fomin
N.A. Pankin
author_facet A.I. Fomin
N.A. Pankin
author_sort A.I. Fomin
collection DOAJ
description The surface layer of DI50-2 cast iron after its processing by electric contact welding has been investigated by methods of X-ray diffraction and electron microscopy. A 50HVA steel strip was used as a filler material. Processing technologies were used with the creation of an intermediate layer of nickel powder PC-12N-01 and without it. Results on phase composition, substructure and residual stresses are obtained. The system under study consists of α-Fe and γ-Fe phases. Substructure parameters (microstrain and block refinement) have the same values for different modes of electrical contact welding. Residual stresses are of a tensile nature and decrease when an intermediate layer of nickel powder material is created. The main mechanism of their formation is thermal effects on the material processed by electrocontact welding. Cracks may form after electrical contact welding of the tape. They are oriented mainly parallel to the surface to be treated and are due to the presence of a large temperature gradient.
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spelling doaj.art-ad36e63053b040499b0d954bebc213662022-12-21T18:12:06ZrusTver State UniversityФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов2226-44422658-43602021-12-011380280810.26456/pcascnn/2021.13.802PHASE COMPOSITION, SUBSTRUCTURE AND RESIDUAL MACROSTRESSES IN THE SURFACE LAYER OF A TAPE OBTAINED BY ELECTRIC CONTACT WELDINGA.I. Fomin0N.A. Pankin1Ogarev Mordovia State University, Saransk, RussiaOgarev Mordovia State University, Saransk, RussiaThe surface layer of DI50-2 cast iron after its processing by electric contact welding has been investigated by methods of X-ray diffraction and electron microscopy. A 50HVA steel strip was used as a filler material. Processing technologies were used with the creation of an intermediate layer of nickel powder PC-12N-01 and without it. Results on phase composition, substructure and residual stresses are obtained. The system under study consists of α-Fe and γ-Fe phases. Substructure parameters (microstrain and block refinement) have the same values for different modes of electrical contact welding. Residual stresses are of a tensile nature and decrease when an intermediate layer of nickel powder material is created. The main mechanism of their formation is thermal effects on the material processed by electrocontact welding. Cracks may form after electrical contact welding of the tape. They are oriented mainly parallel to the surface to be treated and are due to the presence of a large temperature gradient.https://physchemaspects.ru/2021/doi-10-26456-pcascnn-2021-13-802/?lang=enelectrical contact weldingphase compositionmicrostrainssize of subblocksmacrostresses
spellingShingle A.I. Fomin
N.A. Pankin
PHASE COMPOSITION, SUBSTRUCTURE AND RESIDUAL MACROSTRESSES IN THE SURFACE LAYER OF A TAPE OBTAINED BY ELECTRIC CONTACT WELDING
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
electrical contact welding
phase composition
microstrains
size of subblocks
macrostresses
title PHASE COMPOSITION, SUBSTRUCTURE AND RESIDUAL MACROSTRESSES IN THE SURFACE LAYER OF A TAPE OBTAINED BY ELECTRIC CONTACT WELDING
title_full PHASE COMPOSITION, SUBSTRUCTURE AND RESIDUAL MACROSTRESSES IN THE SURFACE LAYER OF A TAPE OBTAINED BY ELECTRIC CONTACT WELDING
title_fullStr PHASE COMPOSITION, SUBSTRUCTURE AND RESIDUAL MACROSTRESSES IN THE SURFACE LAYER OF A TAPE OBTAINED BY ELECTRIC CONTACT WELDING
title_full_unstemmed PHASE COMPOSITION, SUBSTRUCTURE AND RESIDUAL MACROSTRESSES IN THE SURFACE LAYER OF A TAPE OBTAINED BY ELECTRIC CONTACT WELDING
title_short PHASE COMPOSITION, SUBSTRUCTURE AND RESIDUAL MACROSTRESSES IN THE SURFACE LAYER OF A TAPE OBTAINED BY ELECTRIC CONTACT WELDING
title_sort phase composition substructure and residual macrostresses in the surface layer of a tape obtained by electric contact welding
topic electrical contact welding
phase composition
microstrains
size of subblocks
macrostresses
url https://physchemaspects.ru/2021/doi-10-26456-pcascnn-2021-13-802/?lang=en
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