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

Abstract

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.

Effect of Welding Parameters on Axial Shortening in Continuous Friction Welded Inconel 718 Superalloy and AISI 316L Stainless Steel

“…At the same time, it is seen that the HAZ (Heat Affected Zone) is quite narrow in friction welding compared to other welding methods. Thus, the part where the metallurgical structure of the welding zone changes remains in a very small region [1][2][3][4][5].…”

Investigation of the Microstructure and Wear Properties of AISI 304 Steel Friction Weldments

“…Stainless steels which are identified by iron-based alloys containing 8 to 25% nickel and 12 to 30% chromium (Barzinjy, 2016). Generally, there are several types of stainless steels including martensitic, ferritic, austenitic, duplex and precipitation hardening stainless steels (Kirik and Özdemýr, 2015). It is widely utilized in the liquidhandling system and hydraulic machinery due to excellent corrosion resistance, good machinability, low cost and weld-ability (Chiu et al, 2005;Samir A. and Gardi, 2017) and energy-absorption ability (Zhang et al, 2019).…”