Investigation of the mechanical properties of friction-welded joints between AISI 304L and AISI 4340 steel as a function rotational speed

Özdemir, Niyazi

doi:10.1016/j.matlet.2005.03.034

Cited by 129 publications

(58 citation statements)

References 8 publications

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“…This test was carried out on the samples to know their strength in tension, the specimens were subjected to axial tensile stress, and load was applied gradually till the fracture occurs. In all the cases, the strain increases with the rise in stress, subsequently, the stress starts declining after achieving a maximum value, however, the strain continuously increases till the fracture occurs; similar results have been reported by Ozdemir, 2005. Fig.…”

Section: Tensile Testingsupporting

confidence: 86%

Experimental Evaluation of Mechanical Properties of Friction Welded Dissimilar Steels under Varying Axial Pressures

Handa

Chawla²

2016

Strojnícky Casopis – Journal of Mechanical Engineering

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Abstract:The present study emphasizes on joints two industrially important materials AISI 304 with AISI 1021steels, produced by friction welding have been investigated. Samples were welded under different axial pressures ranging from 75MPa to 135MPa, at constant speed of 920rpm. The tensile strength, torsional strength, impact strength and micro hardness values of the weldments were determined and evaluated. Simultaneously the fractrography of the tensile tested specimens were carried out, so as to understand the failure analysis. It was observed that improved mechanical properties were noticed at higher axial pressures. Ductile failures of weldments were also observed at 120MPa and 135MPa axial pressures during fractography analysis.

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Section: Tensile Testingsupporting

confidence: 86%

Experimental Evaluation of Mechanical Properties of Friction Welded Dissimilar Steels under Varying Axial Pressures

Handa

Chawla²

2016

Strojnícky Casopis – Journal of Mechanical Engineering

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“…The advantages of this process are, among others, no melting, high reproducibility, short production time and a low energy input. [10][11][12][13][14][15][16][17][18][19] Welding technology is commonly used in many areas. Because it is aimed to provide high and constant quality in manufacturing sector and in products, the importance of non-destructive is the testing methods in quality-control strategies.…”

Section: Introductionmentioning

confidence: 99%

X-ray radiography of AISI 4340-2205 steels welded by friction welding

Çalıgülü¹,

Yalcinoz²,

Türkmen³

et al. 2016

Mater. Tehnol.

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In this study, X-ray radiographic tests of friction-welded AISI 4340-AISI 2205 steels were investigated. AISI 4340 tempered steel and AISI 2205 duplex stainless steel, each of 12 mm diameter, were used to fabricate the joints. The friction-welding tests were carried out using a direct-drive-type friction-welding machine for different parameters. After this process, the radiographic tests of the welded joints were examined by X-ray diffraction. The experimental results indicated that the AISI 4340 tempered steel could be joined to the AISI 2205 duplex stainless steel using the friction-welding technique and for achieving a weld with sufficient strength. The result of the radiographic tests indicated that by increasing the rotation speed, the friction pressure and the forging pressure, the amount of flash increased for all the specimens. In contrast, when increasing the friction time the amount of flash decreased. The best properties for steels AISI 4340-2205 were observed for the specimens welded at a rotation speed of 2200 min -1 , a friction pressure of 40 MPa, a forging pressure of 80 MPa, a friction time of 6 s and a forging time of 3 s.Keywords: AISI 4340, AISI 2205, friction welding, radiographic test V tej {tudiji so bili rentgensko pregledani spoji jekel AISI 4340-AISI 2205, zvarjeni s trenjem. Spoji so bili izdelani s popu{~e-nim AISI 4340 jeklom in AISI 2205 dupleks nerjavnim jeklom, vsako premera 12 mm. Preizkus varjenja s trenjem je bil izvr{en z uporabo neposredno gnanega stroja za varjenje s trenjem, pri razli~nih parametrih. Po tem postopku so bili zvarjeni spoji pregledani z rentgenom. Rezultati preizkusov so pokazali, da je z varjenjem s trenjem mogo~e spojiti AISI 4340 popu{~eno jeklo in AISI 2205 dupleks nerjavno jeklo in da je mogo~e dobiti zvar z zadostno trdnostjo. Rezultati rentgenskih preiskav so pokazali, da pri nara{~ajo~i hitrosti vrtenja, tornega tlaka in tlaka pri kovanju dele`zmeh~anega roba nara{~a pri vseh vzorcih. Nasprotno pa se pri podalj{anju~asa trenja zmanj{a koli~ina zmeh~anega roba. Najbolj{e lastnosti pri jeklih AISI 4340-2205 so bile opa`ene pri vzorcih, varjenih z rotacijo 2200 min -1 , tornim tlakom 40 MPa, kova{kim tlakom 80 MPa,~asom trenja 6 s iñ asom kovanja 3 s.

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“…A partial presence of martensite was the reason for an increase in the hardness of the weld zone 16 of the AISI 1040 steel, while a higher hardness of steel AISI 304L was due to the grain refinement. 9,10,17 Among the joints, the highest hardness value was measured for sample S1, due to a low rotational speed and a higher frictional time causing a more severe plastic deformation.…”

Section: Hardness-test Resultsmentioning

confidence: 99%

“…This decrease in the tensile strength is associated with the width of the HAZ and the reactions in the AISI 1040 HAZ 17 , causing a grain refinement of the microstructure, the s-phase and the d-ferrite 10,17,20 in the HAZ of AISI 304L. The occurrence of Cr 23 C 6 , Cr 7 C 3 and Fe 7 C 5 was confirmed with an X-ray analysis and an EDS analysis of the friction-welded joints and the occurrence of these phases in the HAZs has an important effect on the tensile strengths of the joints.…”

Section: Figurementioning

confidence: 99%

“…This method can also be used to join the components that have circular or non-circular cross-sections. [10][11][12][13][14][15][16][17] In this study, parts of the AISI 304L austenitic stainless steel and AISI 1040 carbon steel with equal diameters were welded using the friction-welding method. The strengths of the joints were determined with tensile tests and compared with those of the base materials.…”

Section: Introductionmentioning

confidence: 99%

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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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Investigation of the mechanical properties of friction-welded joints between AISI 304L and AISI 4340 steel as a function rotational speed

Cited by 129 publications

References 8 publications

Experimental Evaluation of Mechanical Properties of Friction Welded Dissimilar Steels under Varying Axial Pressures

Experimental Evaluation of Mechanical Properties of Friction Welded Dissimilar Steels under Varying Axial Pressures

X-ray radiography of AISI 4340-2205 steels welded by friction welding

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

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