Effect of friction pressure on the properties of friction welded MA956 iron-based superalloy

Ateş, Hakan; Türker, Mehmet; Kurt, Adem

doi:10.1016/j.matdes.2005.09.015

Cited by 65 publications

(31 citation statements)

References 7 publications

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“…This may be caused by the presence of heat as the thermal conductivity of the material is relatively low as has been found by Satyanarayana et al [2]. In addition to the fact that the higher values of hardness at the weld interface were probably due to the oxidation process which takes place during friction welding, similar trends have been reported by Ates et al [12]. The higher hardness values were found to be at austenitic stainless steel side for all the samples.…”

Section: Microhardness Testsupporting

confidence: 81%

An Investigation on the Effect of Axial Pressures on the Mechanical Properties of Friction Welded Dissimilar Steels

Handa

Chawla²

2014

Advances in Mechanical Engineering

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The aim of the present study was to investigate the effect of axial pressures on the mechanical properties of friction welded AISI 304 with AISI 1021 steels, produced by mechanical joining. In the present study, an experimental setup was designed in order to accomplish friction welded joints between austenitic stainless steel and low alloy steel. Samples were welded under different axial pressures, at a constant speed of 800 rpm. The tensile strength, impact strength, and microhardness values of the welded joints were determined and evaluated and on the basis of the results obtained from the experimentation, the graphs were plotted.

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Section: Microhardness Testsupporting

confidence: 81%

An Investigation on the Effect of Axial Pressures on the Mechanical Properties of Friction Welded Dissimilar Steels

Handa

Chawla²

2014

Advances in Mechanical Engineering

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“…Next to the joint interface, elongated fibrous and severely refined grains can be seen in the HAZ region of both steels perpendicular to the rolling direction. The intensity of orientation was found to be dependent on the welding parameters [16]. It is clearly seen that sufficient friction and upsetting pressure on the joining surface resulted in an adequate locking of the surfaces where extensive plastic deformation and microstructural changes occurred; and these facts gave rise to better tensile response of the joint where recrystallization occured on the AISI 1060 side (more deformation) and grain refinement and strain hardening occured on the AISI 304 steel side (less deformation) which contains high level of Cr that does not normally transform to austenite on heating, further, chromium carbides can form at the ferritic grain boundaries of those containing appreciable carbon content [10].…”

Section: Tensile Strengthmentioning

confidence: 96%

“…Therefore, the flow stress-temperature relationship for each metal will have an important influence on the friction welding parameters. However, it is also reported that [16] a good strength can be obtained by a sufficient diffusion and mechanical locking. If optimum welding parameters are used in friction welding, a perfect bonding can be achieved.…”

Section: Tensile Strengthmentioning

confidence: 99%

Mechanical and Microstructural Properties of Friction Welded AISI 304 Stainless Steel to AISI 1060 Steel AISI 1060

Ateş¹,

Kaya²

2014

Archives of Metallurgy and Materials

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Rotary Friction welding is one of the most popular methods of joining similar and dissimilar materials. It is widely used with metals and thermoplastics in a wide variety of aviation, transport and aerospace industrial component designs. This study investigates the influence of friction and upsetting pressures on the hardness, tensile properties and microstructure of the welds. The experimental results showed that as the friction and upsetting pressures increased, the hardness and tensile strength values increased, as well. The tensile fracture of welded joint occurred in the AISI 1060 side. The friction processed joints were evaluated for their integrity and quality aspects by optical and scanning electron microscopy. For the perfect interfacial bonding, sufficient upsetting and friction pressures are necessary to reach the optimal temperature and severe plastic deformation to bring these materials within the attraction range.Keywords: Welding, Mechanical properties, MicrostructureZgrzewanie tarciowe jest jedną z najbardziej popularnych metod łączenia podobnych i odmiennych materiałów. Jest ono powszechnie stosowane do łączenia metali i tworzyw termoplastycznych w szerokim zakresie wzorów części przemysłowych w lotnictwie, transporcie i przemyśle kosmicznym. Celem badań jest określenie wpływu tarcia i nacisków na twardość, właściwości wytrzymałościowe i mikrostrukturę spoiny. Wyniki doświadczalne wykazały, że zewzrostem tarcia i nacisków wzrosła twardość i wytrzymałość na rozciąganie. W trakcie prób rozciągania pękanie następowało po stronie stali AISI 1060. Zgrzewane tarciowo spoiny zostały oceniopne pod względem ich integralności i jakości za pomocą mikroskopii optycznej i skaningowej mikroskopii elektronowej. Dla uzyskania idealnego złączenia materiałów potrzebne są odpowiednie naciski i tarcie, aby osiągnąć optymalną temperaturę i intensywne odkształcenie plastyczne.

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“…The main reasons for this difference are the heat-transfer capacity and the yield strength of the stainless steels that are 60 % higher than those of the medium-carbon steels. 18,19 The lowest hardness and the lowest temperature were obtained for specimen S27, at the rotational speed of 1700 r/min, frictional pressure of 50 MPa and frictional time of 4 s.…”

Section: Hardness-test Resultsmentioning

confidence: 93%

Effect of process parameters on the microstructure and mechanical properties of friction-welded joints of AISI 1040/AISI 304L steels

Kırık¹,

Özdemir²

2015

Mater. Tehnol.

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Couples of AISI 304L and AISI 1040 steels were welded using the continuous-drive friction-welding process. The welded joints were manufactured using three different rotational speeds ((1300, 1500 and 1700) r/min), three different frictional pressures and three different frictional times. To determine microstructural changes, the interface regions of the welded samples were examined by scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive spectrometry (EDS). Microhardness and tensile tests of the welded samples were conducted. The results show that the properties of the microstructures are significantly changed and the interface temperature increased with the frictional time. An excellent tensile strength was observed for the joint made at a rotational speed of 1700 r/min and a frictional time of 4 s. Keywords: friction welding, AISI 1040 steel, AISI 304L steel Jekli AISI 304L in AISI 1040 sta bili zvarjeni z uporabo kontinuirnega tornega procesa varjenja. Zvarjeni spoji so bili izdelani pri treh razli~nih hitrostih vrtenja ((1300, 1500 in 1700) r/min), treh razli~nih tornih tlakih in treh razli~nih tornih~asih. Za dolo~itev mikrostrukturnih sprememb je bilo sti~no podro~je zvarjenega vzorca preiskano z vrsti~nim elektronskim mikroskopom (SEM), z rentgensko difrakcijo (XRD) in z energijsko disperzijsko rentgensko spektrometrijo (EDS). Izvr{eni so bili preizkusi mikrotrdote in natezni preizkusi varjenih vzorcev. Rezultati ka`ejo, da se mikrostruktura omembe vredno spremeni in da se temperatura stika povi{uje s~asom trenja. Odli~na natezna trdnost stika je bila ugotovljena pri spoju s hitrostjo vrtenja 1700 r/min in pri tornem~asu 4 s.

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Effect of friction pressure on the properties of friction welded MA956 iron-based superalloy

Cited by 65 publications

References 7 publications

An Investigation on the Effect of Axial Pressures on the Mechanical Properties of Friction Welded Dissimilar Steels

An Investigation on the Effect of Axial Pressures on the Mechanical Properties of Friction Welded Dissimilar Steels

Mechanical and Microstructural Properties of Friction Welded AISI 304 Stainless Steel to AISI 1060 Steel AISI 1060

Effect of process parameters on the microstructure and mechanical properties of friction-welded joints of AISI 1040/AISI 304L steels

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