Microstructures and mechanical properties of bonding layers between low carbon steel and alloy 625 processed by gas tungsten arc welding

2017 ◽  
Vol 23 (6) ◽  
pp. 1168-1175 ◽  
Author(s):  
Shuai Lou ◽  
Seul Bi Lee ◽  
Dae-Geun Nam ◽  
Yoon Suk Choi
Keyword(s):  
Mechanical Properties ◽  
Carbon Steel ◽  
Arc Welding ◽  
Low Carbon Steel ◽  
Gas Tungsten Arc Welding ◽  
Low Carbon ◽  
Alloy 625 ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Microstructures And Mechanical Properties

scholarly journals Deposition of Multicomponent Alloys on Low-Carbon Steel Using Gas Tungsten Arc Welding (GTAW) Cladding Process

2009 ◽  
Vol 50 (3) ◽  
pp. 689-694 ◽  
Author(s):  
Jie H. Chen ◽  
Pei N. Chen ◽  
Pei H. Hua ◽  
Ming C. Chen ◽  
Yin Y. Chang ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Arc Welding ◽  
Low Carbon Steel ◽  
Gas Tungsten Arc Welding ◽  
Low Carbon ◽  
Multicomponent Alloys ◽  
Gas Tungsten Arc ◽  
Gas Tungsten

Characterization of Duplex Stainless Steel/Cold Reduced Low Carbon Steel Dissimilar Weld Joints by GTAW

2015 ◽  
Vol 766-767 ◽  
pp. 780-788
Author(s):  
D. Devakumar ◽  
D.B. Jabaraj ◽  
V.K. Bupesh Raja ◽  
P. Periyasamy
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Carbon Steel ◽  
Duplex Stainless Steel ◽  
Base Metal ◽  
Arc Welding ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Weld Joints ◽  
Gas Tungsten Arc

The purpose of this study is to evaluate the mechanical and metallurgical properties of dissimilar metal weld joints between duplex stainless steel/Cold Reduced low carbon Steel (CRS) by Gas Tungsten Arc Welding (GTAW) process. The dissimilar 2 mm thickness plates of duplex stainless steel and cold reduced low carbon steel, conforming to AISI 2205 and IS 513_2008 CR2_D were butt welded by means of gas tungsten arc welding using argon as shielding gas. The butt welding joint arrangement was used for this experiment using E 309L electrode as filler metal. The joints were investigated for mechanical properties and microstructure. Tensile, Hardness and bend tests were carried out to evaluate the mechanical properties. Optical microscopy was used to explore the microstructure. The micro structural examination of the weld region revealed dendritic delta ferrite. Micro examination of DSS base metal revealed elongated grains of austenite (white) with ferrite (Brown). Micro examination of CRS base metal discloses deformed grains of ferrite present in the matrix. Fracture analysis was conducted for the failure part with Scanning Electron Microscope (SEM) and found ductile fracture occurred at CR steel side.

Microstructures and mechanical properties of equal-channel angular pressed low carbon steel

2000 ◽  
Vol 42 (7) ◽  
pp. 695-699 ◽  
Author(s):  
Dong Hyuk Shin ◽  
Chang Woo Seo ◽  
Jongryoul Kim ◽  
Kyung-Tae Park ◽  
Wung Young Choo
Keyword(s):  
Mechanical Properties ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Microstructures And Mechanical Properties

scholarly journals Microstructure and Mechanical Properties of Fe-36Ni and 304L Dissimilar Alloy Lap Joints by Pulsed Gas Tungsten Arc Welding

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4016
Author(s):  
Qian Wang ◽  
Junqi Shen ◽  
Shengsun Hu ◽  
Guancheng Zhao ◽  
Jie Zhou
Keyword(s):  
Mechanical Properties ◽  
Arc Welding ◽  
Tensile Force ◽  
Lap Joints ◽  
Gas Tungsten Arc Welding ◽  
Lower Sheet ◽  
Gas Tungsten Arc ◽  
Microstructure And Mechanical Properties ◽  
Dissimilar Alloys ◽  
Gas Tungsten

High-quality joining of dissimilar alloys between Fe-36Ni alloy and 304L stainless steel is essential in the manufacturing of LNG tanker. In this study, lap joints of Fe-36Ni and 304L dissimilar alloys were fabricated by a pulsed gas tungsten arc welding (P-GTAW) process. The effects of low-frequency pulse on the appearance, microstructure and mechanical properties of the Fe-36Ni/304L lap joints was investigated. With the increase of frequency, the feature sizes of α (the transition angle of the upper surface of Fe-36Ni to the surface of the weld bead) and R (shortest distance between weld root and weld surface) exhibited downtrend and uptrend, respectively, while La (the maximum weld width of lower sheet) and P (the maximum weld penetration of lower sheet) changed in a smaller range. Fusion zone (FZ) is mainly composed of γ phase and M23C6 during solidification, and M23C6 particles are distributed on the grain boundaries of the cells, which reduced the mechanical properties of joint. The average hardness between 110 HV1 and 136 HV1 is lower than that of the base metals. Fractures of all joints located at the Fe-36Ni side near the weld, and a dimple fracture in all samples indicated a ductile fracture. This study found that the heat input values remain 198.86 J mm−1 and increased pulse frequency can improve the maximum tensile force. The average maximum tensile force of the lap weld is 11.95 kN when pulsed frequency is 15 Hz.

Effect of Shielding Gas Mixture on Gas Metal Arc Welding (GMAW) of Low Carbon Steel (LR Grade A)

2016 ◽  
Vol 705 ◽  
pp. 250-254 ◽  
Author(s):  
Yustiasih Purwaningrum ◽  
Triyono ◽  
M. Wirawan Pu ◽  
Fandi Alfarizi
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Carbon Steel ◽  
Arc Welding ◽  
Gas Metal Arc Welding ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Shielding Gas ◽  
Weld Metals ◽  
Metal Arc Welding

The aimed of this research is to determine the feasibility and effect of the mixture of the shielding gas in the physical and mechanical properties. Low carbon steel LR grade A in a thickness 12 mm were joined in butt joint types using GMAW (Gas Metal Arc Welding) with groove’s gap 5 mm and groove angle’s 400 with variation of shielding gas composition. The composition of shielding gas that used were 100% Ar, 100 % CO2 and 50% Ar + 50 % CO2. The measured of mechanical properties with regard to strength, hardness and toughness using, tensile test, bending test, Vickers hardness Test, and Charpy impact test respectively. The physical properties examined with optical microscope. Results show that tensile strength of welding metals are higher than raw materials. Welds metal with mixing Ar + CO shielding gas has the highest tensile strength. Hardness of weld metals with the shielding gas 100% Ar, 100 % CO2 and 50% Ar + 50 % CO2 are 244.9; 209.4; and 209.4 VHN respectively. The temperature of Charpy test was varied to find the transition temperature of the materials. The temperature that used were –60°C, -40°C, -20°C, 0°C, 20°C , and room temperature. Weld metals with various shielding gas have similar trends of toughness flux that was corellated with the microstructure of weld .

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