Search academic texts

Information × Registration Number 0216U003810, 0113U003486 , R & D reports Title Analysis of the performance of welded joints on high-alloy steels, alloys and non-ferrous metals, and of the effect of segregation processes on embrittlement and service life of the welded structures popup.stage_title Head Yuschenko Konstantin Andriyovitch, Доктор технічних наук Registration Date 18-02-2016 Organization E.O. Paton Electric Welding Institute of the National Academy of Sciences of Ukraine popup.description2 The complex research for multipass welds Ni-Cr-Fe and Ni-Cr-Fe-Nb-Mo, which includes transmission electron microscopy and provides insight into the formation of dislocations in several areas of structural components (grain volumes and in the zone sntergrain boundaries) and allows perform analytical estimation of localized deformation and local internal stresses. According to Auger spectroscopy analysis of the results suggests that saturation in the sulfur on grain boundaries occurs monolayer sulfur in the presence of appropriate stress leads to a reduction in cohesive strength and limits to their destruction. The use of physical methods of research indicate embrittlement due to formation of micro and hot macrocracks high angle boundaries on a welded joints of steels and alloys with the fcc lattice. Development and use of methods of investigation of the mechanism of brittle fracture to set the conditions embrittlement and give recommendations on that welding for welded joints with high crack resistance Product Description popup.authors Гах Ігор Сергійович Задерй Борис Олексійович Звягінцева Ганна Віталіївна Червяков Микола Олегович popup.nrat_date 2020-04-02 Close