Experimental investigation of effect of welding parameters on surface roughness, micro-hardness and tensile strength of AISI 316L stainless steel welded joints using 308L filler material by TIG welding

Ghumman, Khubaib Zafar; Ali, Sadaqat; Uddin, Emad; Mubashar, Aamir; Khan, Niaz Bahadur; Ahmad, Syed Waqar

doi:10.1016/j.jmrt.2022.09.016

Cited by 29 publications

(9 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The shielding gas group utilized also had an impact on the UTS results. For example, the Samples 6 and 8 using gas combination G1, as noted by Ghumman et al [36]. Furthermore, an increase in the N 2 (6 vol%) content and moderate content of CO 2 (10 vol%) resulted in higher UTS and EL.% in the weld metals.…”

Section: Uts and El% Of Aisi 316l/er316lmentioning

confidence: 74%

See 1 more Smart Citation

Experimental investigation of the impact of GMAW welding parameters on the mechanical properties of AISI 316L/ER 316L using quaternary shielding gas

Khrais,

Al Hmoud,

Abdel Al

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

In this study, the parameters of Metal Inert Gas (MIG) and Metal Active Gas (MAG) were investigated of AISI 316L/ER 316L. A quaternary shielding gas mixture consisting of Argon (Ar), Helium (He), Carbon Dioxide (CO2), and Nitrogen (N2) was chosen. The Taguchi orthogonal array (OA-L9) methodology was employed to explore optimal welding settings, including arc current (120A, 160A, 200A), wire feed rate (3, 3.5, 4 m/min), and shielding gas combination (G1, G2, G3). The findings highlighted the importance of shielding gas in influencing the ultimate tensile strength (UTS), elongation percentage (EL.%), and material toughness of welding joints. Notably, the highest UTS (515.77 MPa), EL.% (20.85%), and material toughness (133J) were achieved by the specific group gas combination shown as G1. It is recommended to configure welding parameters to an arc current of 160A, a wire feed rate of 4 m/min, and the G1 gas combination. Welded specimens using a G1 gas mixture showcased the best UTS and EL.%. Additionally, it was found that the fusion zone (FZ) and heat-affected zone (HAZ) hardness are most profoundly influenced by the choice of gas combination (G2), resulting in the best hardness values of 253.79 HV and 239.68 HV, respectively. The optimal parameters for achieving the desired material hardness were precisely identified as (120A, 3 m/min, G2). These insights offer a pathway to enhance welding performance and, in turn, elevate the quality and efficiency of industrial applications.

show abstract

Section: Uts and El% Of Aisi 316l/er316lmentioning

confidence: 74%

“…The specimens welded using the G1 gas combination exhibited relatively higher UTS values compared to those welded using the G2 and G3 gas combinations. Ghumman et al [36] reported the UTS of AISI 316L typically within the range of 218.55 to 426.80 MPa. Additionally, the maximum EL% was 57.6%.…”

Section: Uts and El% Of Aisi 316l/er316lmentioning

confidence: 99%

Experimental investigation of the impact of GMAW welding parameters on the mechanical properties of AISI 316L/ER 316L using quaternary shielding gas

Khrais,

Al Hmoud,

Abdel Al

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…In welding process, adjusting parameters to the best level leads to attain better mechanical properties and weld quality. In relation to this, Mechanical properties of TIG welded stainless steel was studied and process parameters were optimized using Taguchi method for the test of tensile strength of pipe joints [16]. The authors reported that maximum tensile strength with the weld variables combination of voltage 18V, gas flow rate 6L/min and current 100amp.…”

Section: Optimization Of Tig Welding Processmentioning

confidence: 99%

Investigating the effect of TIG welding process variables on the mechanical properties of stainless steel-304 pipe welded joints

Yeshanew,

Mana

2024

Preprint

View full text Add to dashboard Cite

Stainless steel weld joint quality optimization research has become necessary due to the rise in sudden welded pipe joint failure. The mechanical characteristics and weld quality are greatly influenced by the combined effect of controllable process parameters. This study sought to determine the ideal parameters and examine how tungsten inert gas welding process factors affected the mechanical characteristics of the stainless pipe weld joint. Welded features such as bead shape, size, and mechanical properties were studied related to the weld controllable factors in order to achieve the desired weld quality. Austenitic stainless-steel samples (AISI 304) having 90mm outer diameter and 5mm thick pipe was used for the study. Data were studied using analysis of variance to evaluate the effect of each factor and validated the model's suitability. The results show that the rate of gas flow had the greatest impact on the tensile strength and hardness, whereas the welding current had the main influential factor on the bending strength. Weld parameters were optimized by applying response surface methodology technic and validated using laboratory tests. According to the experiment, optimum weld parameters were 121.30amp, 14 Lit/min, and 2mm for current, gas flow, and root gap respectively. As a result of these parameters combination, optimized mechanical properties were determined including tensile strength of 1402.601N/mm2, hardness of 61.372HRA, and bending strength of 826.022Nm. The optimized parameters evolved from this research can be utilized in the fabrication process of TIG welding at the industries.

show abstract

“…Furthermore, the type of material utilized, and the desired welding properties are considered, because the type of material is affected by the welding process due to variations in material properties such as melting point and thermal conductivity. Also, welding properties are influenced by changes in welding parameters like current, voltage, and travel speed [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…(1)(2)(3)(4)(5)(6)(7)(8)(9), at 150 A arc current for the Samples No. (10-13) and at 180 A arc current for the Samples No.…”

mentioning

confidence: 99%

Effect of TIG welding parameters on 316 L stainless steel joints using taguchi L27 approach

Khrais,

Mohammed,

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

The AISI 316L stainless steel was welded using Tungsten Inert Gas (TIG) welding, utilizing ternary shielding gases Argon (Ar), Helium (He), and Nitrogen (N2). This study aimed to assess the effects of these ternary shielding gases on the microstructure, bead profile, and bead appearance. It provides a comprehensive grasp of welding parameters' interplay with shielding gas compositions, enabling engineers to make informed choices that significantly influence the excellence, productivity, and lastingness of the welding process. The Taguchi L-27 approach was employed, incorporating different contents of N2 (2.5 vol% to 7.5 vol%) and He (10 vol% to 30 vol%) within the Ar shielding gas composition. Additionally, welding current intensities ranging from 120A to 180A were also used in the experiment. The results demonstrated that a higher content of He and N2 resulted in elevated levels of austenite-forming elements. Therefore, for TIG welding at the arc current intensity of 150A, it is recommended to utilize the shielding gas mixtures (2.5 vol.% N2 + 10 vol.% He + 87.5 vol.% Ar). Furthermore, by augmenting the content of both N2 and He within the Ar shielding gas mixture, in addition to adjusting the arc current, a notable expansion in both the width and depth of the weld profile was achieved. This achievement, in turn, played a pivotal role in securing comprehensive fusion throughout the welding process.

show abstract

Experimental investigation of effect of welding parameters on surface roughness, micro-hardness and tensile strength of AISI 316L stainless steel welded joints using 308L filler material by TIG welding

Cited by 29 publications

References 15 publications

Experimental investigation of the impact of GMAW welding parameters on the mechanical properties of AISI 316L/ER 316L using quaternary shielding gas

Experimental investigation of the impact of GMAW welding parameters on the mechanical properties of AISI 316L/ER 316L using quaternary shielding gas

Investigating the effect of TIG welding process variables on the mechanical properties of stainless steel-304 pipe welded joints

Effect of TIG welding parameters on 316 L stainless steel joints using taguchi L27 approach

Contact Info

Product

Resources

About