Orted on the basis of many structures of low-carbon steel throughOrted on the basis of

Orted on the basis of many structures of low-carbon steel through
Orted on the basis of a variety of structures of low-carbon steel via electron back scatter diffraction (EBSD) analysis [2,six,10], and this study quantitatively analyzes the microstructure of your HAZ of TMCP steel applying the EBSD analysis system. two. Experimental Section two.1. Material The chemical composition and manufacturing processes from the steel plates made use of within this study are shown in Table 1 and Figure 1. By way of the TMCP course of action, 80-mm-think steel plates have been manufactured, with pretty low carbon content (about 0.14 wt ). Many alloy components such as Nb, V, and Ti were added to enhance the strength from the steel plates [1]. Figure 1 shows the transformation start temperature (A1 ) and finish temperature (A3 ) from ferrite to austenite [13]. Before rolling, the slab was subjected to austenitizing heat therapy at 1070 1150 C for 2 h, and was rolled in air at a reduction ratio of 40 60 to produce an 80-mm plate. Immediately after the rolling method, it was water-cooled from 750 C to 500 C at a cooling rate of 4 C/s to six C/s, then air-cooled to space temperature. The yield strength of your plate to become applied as the base material for GS-626510 Autophagy Welding is 510 MPa, and the complete dimensions have been 500 mm (W) 1000 mm (L) 80 mm (H).Metals 2021, 11, 1839 Metals 2021, 11, x FOR PEER REVIEW3 of 16 3 ofTable 1. Chemical composition (wt ) of the thick steel plate.Metals 2021, 11, x FOR PEER REVIEWElementCSiMnP 0.S 0.Cr 0.Ni 1.Mo 0.N 0.Al 0.Cu 0.Nb 0.Ti 0.three ofVContent 0.0.2.0.Figure 1. Schematic diagram in the manufacturing circumstances on the present thick steel plate. Table 1. Chemical composition (wt ) with the thick steel plate.Element C Si Mn P S Cr Ni Mo N Al Cu Nb Ti V Content material 0.14 0.55 2.00 0.02 0.01 0.30 1.00 0.25 0.01 0.02 0.035 0.05 0.025 0.Figure 1. Schematic diagram on the manufacturing circumstances with the present thick steel plate.two.two. Submerged Arc Welding (SAW) 2.two. Submerged Arc Welding (SAW) of the thick steel plate. Table 1. Chemical composition (wt ) The welding wire employed inside the SAW approach in the TMCP steel complied with the The welding wire utilized in the SAW procedure in the TMCP steel complied with the Element C Si Mn P S Al American Welding Association (AWS) Cr Ni The base American Welding Association (AWS) typical. The base N material Cu weldedato a V standard. Mo material was welded toTi80-mmwas Nb 80Content 0.14steel plate having a K-groove. Figure 0.252 0.01the the 0.035 0.05 diagram the 0.55 two.00 0.02 0.01 0.30 1.00 two shows 0.02 schematic 0.025 of of think TMCP mm-think TMCP steel plate with a K-groove. Figure shows schematic diagram 0.08 shape of of K-groove. Seventeen multi-layer weldings were performed in in each of 1st the shape thethe K-groove. Seventeen multi-layer weldings had been performed every single of thethe two.2. Submerged Arc Weldingin Figure 2. And thethe specimens are summarized in Table 2. and 2nd directions shown (SAW) 1st and 2nd directions shown in Figure two. And specimens are summarized in Table 2. The chemical compositions from the within the SAW and flux applied used for welding are in Table 3. The welding wire used the welding wire plus the TMCP steel complied with within the chemical compositions ofwelding wire approach offlux for welding are shown shown the Table three. shows 4 shows the weldingvoltage, welding speed, and AAPK-25 Autophagy preheating welded to temAmerican Welding Association (AWS) typical. The base material was temperature for Table 4 Table the welding current, current, voltage, welding speed, and preheating a 80the welding method including heat input. The.