Dissimilar ferrous-nonferrous metal welding

Mvola, Belinga; Kah, Paul; Martikainen, Jukka

doi:10.2495/amitp130301

Cited by 14 publications

(26 citation statements)

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“…The Al 4 C 3 phase was obtained in the welding pool. However, in scanning electron microscope micrographs, the distinctive needle form of Al 4 C 3 was not determined in comparison to previous studies . Pores were observed in welding area and the fusion zone.…”

Section: Resultscontrasting

confidence: 73%

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Pulsed metall inert gas (MIG) welding and its effects on the microstructure and element distribution of an aluminum matrix reinforced with SiC composite material

Ulukoy

2017

Materialwissenschaft Werkst

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This study aims to demonstrate the effects of pulsed current on the welding pool and fusion zone microstructures of the aluminum 2014 alloy matrix composite material reinforced with 14 and 20 vol% SiC particles. A programmable synergic controlled MIG welding machine with pulsed power supply was used. One hundred Ampere and 120 Ampere pulsed current values were used to determine the effect of heat input on microstructures. A 1 mm diameter SG‐AlSi5 wire was used as filler material. The microstructures were studied using a scanning electron microscope (SEM) with energy dispersive X‐ray (EDX) spectroscopy, and the phase analyses were performed via X‐ray diffraction analyzer (XRD). The study showed that increasing the SiC rate has a greater effect on the formation of Al4C3 phase than increasing the heat input values. Al4C3 formation was not formed as a needle‐like structure.

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Section: Resultscontrasting

confidence: 73%

“…MgCu 2 and Mg 2 Cu intermetallic phases are caused by the weakness of the welds. However, the uniform distribution and high potential of MgCu 2 can block corrosion; non‐uniformity of this phase can reduce corrosion resistance . The Al 4 C 3 phase was not obtained in the welding pool.…”

Section: Resultsmentioning

confidence: 99%

Pulsed metall inert gas (MIG) welding and its effects on the microstructure and element distribution of an aluminum matrix reinforced with SiC composite material

Ulukoy

2017

Materialwissenschaft Werkst

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“…Dissimilar welding of ferritic and austenitic stainless steel in general can be considered one of the important methods to gain better and satisfactory quality of weldment. 2 Presently, the welding of dissimilar materials has extensively improved for industrial applications, 3 steam power plants is one of these applications that dissimilar friction welding is necessary to be used 4 due to differs of conditions in boiler tubes, there are high temperature tubes and low temperature tubes in boiler of steam power plant, so using of two types of materials can save more economically due to unstable Nickel prices overall the world. Such combination of dissimilar materials is commonly found at high-temperature applications such as energy conversion systems.…”

Section: Introductionmentioning

confidence: 99%

Optimization of parameters in rotary friction welding process of dissimilar austenitic and ferritic stainless steel using finite element analysis

Mattie

Ezdeen

Khidhir

2023

Advances in Mechanical Engineering

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Solid state joining techniques are increasingly used in joining different types of materials, in this work TP347HFG austenitic stainless steel will be welded with HiPerFer ferritic stainless-steel alloy due to their similarity in their properties to some extent after making heat treatment to ferritic alloy in addition to difference in their cost which save for economic reasons. In this work, a three-dimensional finite element model was developed. The thermal analysis and profiles between process parameters were predicted by using an ANSYS software tool. Design of experiments by Anova was used to examinate the simulation results and to evaluate contribution ratio of each parameter on responses, while grey relational analysis was used to specify the optimum trial. It was observed that trial 11 give best results (A4B2C1D1) which got higher grey relational grade. It was concluded that the friction pressure and friction time have more impact on interface temperature, whereas forging pressure and friction time affect the equivalent Von-Mises stress directly. The speed and forging pressure have a more influence on total deformation. It was also concluded that the temperature was fade out by diverging toward the end of specimen and the amount of decrease in temperature is less in ferritic side. The amount of flash extruded from both steels are approximately similar due to similarity in properties as heat treatment of ferritic alloy had been achieved. The investigation results show that trial 8 achieved highest Von-Mises stress (300 MPa) while trial 7 induced lower stress (255 MPa), maximum deformation was found equivalent to 0.012 mm with trial 16 whereas, it was found (0.008 mm) with trial 11 which were both less than the allowable deformation in end application. Tensile strength of weld joint was found equivalent to 80% of softer base metal. The hardness of optimum trial was equivalent to 156 HB.

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“…Various conventional fusion welding methods, such as shielded metal arc welding (SMAW), gas metal arc welding (GMAW), submerged arc welding (SAW), flux cored arc welding (FCAW), and gas tungsten arc welding (GTAW), can be used for the welding of dissimilar metal combinations. [2][3][4][5][6] However, there are many difficulties associated with the fusion welding of dissimilar metals. Hot cracking may occur because of low-melting point impurities, such as phosphor (P) and sulfur (S).…”

Section: Introductionmentioning

confidence: 99%

“…[2][3][4][5][6] However, there are many difficulties associated with the fusion welding of dissimilar metals. Hot cracking may occur because of low-melting point impurities, such as phosphor (P) and sulfur (S).…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the welding procedure of the central groove of armored face conveyor

Wang

Cheng

Meng

et al. 2016

Advances in Mechanical Engineering

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The central groove is a key component of armored face conveyor. Failure of welded joints in the central groove often occurs in engineering. In this article, the welding procedure parameters were analyzed to the improve strength and toughness of the dissimilar steel weld joint in the central groove. First, four types of super-high wear-resistant steel and two types of high-strength welding wire were chosen as the welding materials. Carbon equivalent method, cold crack sensitivity index method, and maximum hardness of heat-affected zone test were applied to analyze their welding properties. Second, to improve their weldability, the proper preheating temperature was determined using Y-groove cracking test and mechanical property tests. Finally, a semi-automatic CO 2 welding method was adopted, and a second mechanical property test was conducted to determine the proper welding wire. Results show that the chosen steels have poor weldability and cold cracking sensitivity. Preheating must be used to prevent cold cracking. When the preheating temperature is higher than 80°C, the cold crack rate can be controlled to under 20%, which can satisfy application requirements. Welding wire YMGR76 is appropriate. Using YMGR76, the preheating temperature drops to 120°C, and the strength and toughness of the weld joint are improved to 813 MPa and 112 KV 2 /J, respectively. This study provides a welding procedure to improve the reliability of the central groove.

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Dissimilar ferrous-nonferrous metal welding

Cited by 14 publications

References 0 publications

Pulsed metall inert gas (MIG) welding and its effects on the microstructure and element distribution of an aluminum matrix reinforced with SiC composite material

Pulsed metall inert gas (MIG) welding and its effects on the microstructure and element distribution of an aluminum matrix reinforced with SiC composite material

Optimization of parameters in rotary friction welding process of dissimilar austenitic and ferritic stainless steel using finite element analysis

Experimental study on the welding procedure of the central groove of armored face conveyor

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