Through-Thickness Residual Stress Profiles in Austenitic Stainless Steel Welds: A Combined Experimental and Prediction Study

Mathew, Jino; Moat, Richard; Paddea, Sanjooram; Francis, J. A.; Fitzpatrick, Michael E.; Bouchard, P. J.

doi:10.1007/s11661-017-4359-4

Cited by 21 publications

(17 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To characterize the through-thickness distribution of residual stresses as a function of welding heat input and geometry in stainless steel pipes, two pieces of research in 2017 proposed a new data-based approach based on an artificial neural network (ANN) and verified the results with those of contour and neutron diffraction methods. [194,195] The ANN method successfully learnt the nonlinear patterns associated with residual stress fields in the HAZ and weld centerline.…”

Section: Thermalmentioning

confidence: 99%

Residual Stress in Engineering Materials: A Review

et al. 2021

View full text Add to dashboard Cite

The accurate determination of residual stresses has a crucial role in understanding the complex interactions between microstructure, mechanical state, mode(s) of failure, and structural integrity. Moreover, the residual stress management concept contributes to industrial applications, aiming to improve the product's service performance and life cycle. In this regard, the industry requests rapid, efficient, and modern methods to identify and control the residual stress state. This review article contains three main sections. The first section covers different residual stress determination methods and reports the advancements over the recent decade. The second section includes the role of residual stresses in the performance of a broad range of materials including metallic alloys, polymers, ceramics, composites, and biomaterials. This is presented by classifying different science areas dealing with residual stresses into two main groups, including “origins” and “effects” of residual stresses. The range of topics covered are “welding, machining, curing/cooling, and spray coating processes,” “medical and dental sciences,” and “fatigue and fracture mechanisms.” The third section summarizes various strategies to effectively control residual stresses through different manufacturing procedures. It is hoped that the data provided herein serves as a valuable up‐to‐date reference for engineers and scientists in the field of residual stress.

show abstract

Section: Thermalmentioning

confidence: 99%

Residual Stress in Engineering Materials: A Review

et al. 2021

View full text Add to dashboard Cite

show abstract

“…[31] In some studies, a combination of the two classes of experimental methods is used and supported by simulations. [32,33] A critical limitation for diffraction techniques to accurately determine RS is the use of an appropriate stress-free-reference d 0 . [34] This challenge is harder when using ND, since no simplifying assumptions can be used if one wants to determine a fully triaxial RS.…”

Section: Introductionmentioning

confidence: 99%

Triaxial Residual Stress in Laser Powder Bed Fused 316L: Effects of Interlayer Time and Scanning Velocity

et al. 2022

View full text Add to dashboard Cite

The control of residual stress (RS) remains a challenge in the manufacturing of metallic parts using the laser powder bed fusion process (LPBF). This layer‐by‐layer manufacturing approach gives rise to complex triaxial RS distributions, which require extensive characterization effort for a broader acceptance of LPBF in industry. This study focuses on the distribution of bulk triaxial RS and surface RS in LPBF austenitic steel 316L. The RS are determined by X‐ray and neutron diffraction to characterize the RS distribution. Variations in the LPBF parameters interlayer time (ILT) and scanning velocity and their influence on the temperature distribution and resulting RS is investigated using thermographic data from in situ process monitoring. The RS in the LPBF 316L is tensile at the surface and compressive in the bulk. The RS is directly related to the thermal history of the part as shown by the in situ thermography data. Shorter ILT leads to higher temperatures of the part during the manufacturing, which decrease the RS and RS formation mechanisms. Interestingly, the surface RS does not agree with this observation. This study highlights the benefit of using multiple RS determination methods and in situ thermography monitoring to characterize the RS in LPBF processed parts.

show abstract

“…An attempt to study residual stress profiles in welds using an artificial neural network approach was made in [15]. Although this scattering of results is often attributed to the texture of the dendrites, it has been shown that texture does not play a key role in austenitic steel stress analysis [9].…”

Section: Introductionmentioning

confidence: 99%

Quantification of Residual Stress Relief by Heat Treatments in Austenitic Cladded Layers

et al. 2022

View full text Add to dashboard Cite

The effect of the heat treatment on the residual stresses of welded cladded steel samples is analyzed in this study. The residual stresses across the plate’s square sections were determined using complementary methods; applying diffraction with neutron radiation and mechanically using the contour method. The analysis of the large coarse grain austenitic cladded layers, at the feasibility limits of diffraction methods, was only made possible by applying both methods. The samples are composed of steel plates, coated on one of the faces with stainless steel filler metals, this coating process, usually known as cladding, was carried out by submerged arc welding. After cladding, the samples were submitted to two different heat treatments with dissimilar parameters: one at a temperature of 620 °C maintained for 1 h and, the second at 540 °C, for ten hours. There was some difference in residual stresses measured by the two techniques along the surface of the coating in the as-welded state, although they are similar at the welding interface and in the heat-affected zone. The results also show that there is a residual stress relaxation for both heat-treated samples. The heat treatment carried out at a higher temperature showed sometimes more than 50% reduction in the initial residual stress values and has the advantage of being less time consuming, giving it an industrial advantage and making it more viable economically.

show abstract

Through-Thickness Residual Stress Profiles in Austenitic Stainless Steel Welds: A Combined Experimental and Prediction Study

Cited by 21 publications

References 25 publications

Residual Stress in Engineering Materials: A Review

Residual Stress in Engineering Materials: A Review

Triaxial Residual Stress in Laser Powder Bed Fused 316L: Effects of Interlayer Time and Scanning Velocity

Quantification of Residual Stress Relief by Heat Treatments in Austenitic Cladded Layers

Contact Info

Product

Resources

About