A combined experimental and numerical examination of welding residual stresses

Abstract

DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal.If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement:

Investigation of residual stress in butt-welded plates considering phase transformation

“…In addition, ignoring the phase transformation would overestimate the longitudinal stresses in the weld region and transverse stress in the HAZ, which is consistent with conclusions from other literatures. 6,8,13 Therefore, for the welding with filler material, both phase transformation and the material filling process should be considered to obtain precise predictions of the welding residual stress.…”

“…Rikken et al 13 used the experimental results obtained by heating the sample to 1000 C and subsequently cooling it to room temperature, in order to simulate the phase transformation in welding. Andersson 17 separated the phase transformation during the cooling procedure into three segments: peak temperature greater than 1100 C, less than 950 C, and between the two temperatures.…”

“…The phase fractions of austenite f A could be expressed as in equation (6); during the cooling procedure, the phase transformation was approximated using the Koistinen-Marburger model. 13 The phase fractions of a mixture of ferrite, bainite, and martensite f M could be expressed as equation (7):…”

Control of Welding Residual Stress and Deformation for the Rod Support of a Crane

“…Although the calculation result is consistent with the experimental measurement result, their actual working condition has a great difference from construction site. Although finite element welding simulation has been performed on different materials [20][21][22][23] and different joint types [24][25][26][27], some important welding parameters from structural optimization (e.g., the length of welding seam) and welding process (e.g., welding voltage) were less considered in the numerical simulation process, especially for the welding seam longer than the effective length. Just as this study, the welding seam of the rod support was much longer in the QTZ100 (H6013) flat-top tower crane.…”

Basic alloy development of low-transformation-temperature fillers for AISI 410 martensitic stainless steel

“…Therefore, researchers have focused on reaching an efficient and applicable technique that can solve the residual stresses issues precisely during the welding operation without needing additional processing steps to avoid any extra cost. Regarding the literature review, utilising the controlled solid-state phase transformations can be helpful in solving the welding residual stresses issue [13][14][15]. This goal can be achieved by using low-transformation-temperature (LTT) filler which decreases the austenite to martensite transformation temperature (M s ) and, consequently, can reduce the welding tensile residual stresses [15].…”