scholarly journals Effect of Spot-Welding Current-Cycle for Medium Carbon Steel And Stainless Steel on Mechanical Properties

2018 ◽  
Vol 7 (4.37) ◽  
pp. 214
Author(s):  
Nawzad J.Mahmod ◽  
Aysha Sh. Hasan ◽  
Ahmed A.Hussein ◽  
Obed M. Ali
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Carbon Steel ◽  
Spot Welding ◽  
Welding Current ◽  
Electrical Current ◽  
Medium Carbon Steel ◽  
Maximum Heat ◽  
Medium Carbon ◽  
Spot Diameter

Spot welding involves the joining of two or more plate metals in localized areas where melting and jointure of a little volume of fabric happens from heating caused by resistance to the passage of an electrical current. This process is typically used for obtaining a lap joint of plate metal parts. In this work, stainless steels and medium carbon steel were used. Three rules for welding set-up, lowest tap on the fastening electrical device, highest % current setting on the weld management and shortest weld time setting on the weld management were adopted. Experiments conducted to show the effect of these variables on the welding diameter and tensile strength for each sample for medium carbon steel and stainless steel separately and joining both metals together by spot welding. The results show that the utmost durability was at stainless steel specimens and minimum tensile strength was at medium carbon steel specimens. Furthermore, the obtained results showed that the maximum heat generated was at stainless steel specimens and minimum heat generated values was at medium carbon steel specimens for all current dependent in this work. Meanwhile, slight effect of heat generated on the spot diameter for the current of 10.6 & 5.3 kA, and so significant effect on the spot diameter for the last current (2.3kA).   

scholarly journals Microstructural and Wear Properties of Annealed Medium Carbon Steel Plate (EN8) Cladded with Martensitic Stainless Steel (AISI410)

Metals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 958
Author(s):  
Shubrajit Bhaumik ◽  
Manidipto Mukherjee ◽  
Parijat Sarkar ◽  
Anish Nayek ◽  
Viorel Paleu
Keyword(s):  
Grain Size ◽  
Stainless Steel ◽  
Carbon Steel ◽  
Base Metal ◽  
Martensitic Stainless Steel ◽  
Medium Carbon Steel ◽  
Wear Properties ◽  
Medium Carbon ◽  
Average Grain Size ◽  
Pin On Disc

Limited work on the wear properties of martensitic stainless-steel weld clads initiated this work which included investigations on microstructural and wear properties of cladded AISI 410 (filler wire)/EN 8 plates (substrate). Three layers of martensitic stainless steel (AISI 410) were deposited using metal inert gas (MIG) welding on medium carbon steel (EN 8) achieving a 51.5 ± 2.35 HRC of top layer. The elemental and phase fractions of the cladded layers indicated 98% martensite phase and retained austenite (2%). About 40% dilution was observed between EN 8 and the first weld layer. The results of tests carried out on pin on disc tribometer revealed an enhancement of anti-wear life of the martensitic weld cladded EN 8 by three times that of uncladded EN 8. The uncladded EN 8 plate suffered severe damage and high wear, leading to its failure at 478 s. The failure of the uncladded EN 8 sample was identified by the occurrence of high vibration of the pin on disc tribometer which ultimately stopped the tribometer. On the other hand, the cladded EN 8 sample continued running for 3600 s, exhibiting normal wear. After the tribo test, the surfaces of the pins of both cladded and uncladded EN 8 were analyzed using scanning electron microscope (SEM) and 3D profilometer. The surface characterization of tribo pairs indicated ploughing and galling to be the primary wear mechanisms. The average grain size of top and middle layer was in the range of 2–3.5 µm, while the base metal showed 5.02 µm mean grain size, resulting in higher hardness of clad layers than base metal, also favoring better wear resistance of the cladded EN 8 samples as compared to uncladded EN 8 samples.

scholarly journals Characterization of a Friction Surfaced Stainless Steel Coating on Medium Carbon Steel

2019 ◽  
Vol 42 (4) ◽  
pp. 53-62
Author(s):  
Rathinam George Sahaya Nixon ◽  
Rengarajan Sathish ◽  
Bhulok Sundar Mohanty
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Medium Carbon Steel ◽  
Medium Carbon ◽  
Steel Coating

Effect of medium carbon steel microstructure on tensile strength and fatigue crack growth

2019 ◽  
Vol 10 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Blaoui Mohammed Mossaab ◽  
Mokhtar Zemri ◽  
Mustapha Arab
Keyword(s):  
Heat Treatment ◽  
Tensile Strength ◽  
Fatigue Crack ◽  
Carbon Steel ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Medium Carbon Steel ◽  
Medium Carbon ◽  
Content Type ◽  
Steel Microstructure

Purpose The purpose of this paper is to evaluate the effects of medium carbon steel microstructure on the tensile strength and fatigue crack growth (FCG) behavior. Design/methodology/approach To achieve this aim, four different heat treatment methods (normalizing, quenching, tempering at 300°C and tempering at 600°C) were considered. Microstructural evolution was investigated by scanning electron microscopy. FCG rate tests were conducted on the resultant microstructures with compact tension specimens at room temperature by a standard testing method. Findings The results show that the normalized microstructure had the largest number of cycles to failure, indicating a high fatigue resistance, followed by the as received, tempered at 600°C, tempered at 300°C and quenched microstructure. Originality/value The paper shows the influence of the microstructure on the fatigue-propagation behavior with the definition of the Paris parameters of each heat treatment condition.

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