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.

Preparation and Mechanical Properties of Ultra-Fine Grain Medium-Carbon Steel Based on Equal-Channel Angular Pressing

2015 ◽  
Vol 645-646 ◽  
pp. 427-434
Author(s):  
Jian Min Wang ◽  
Wen Tao Hou ◽  
Lin Lu
Keyword(s):  
Phase Transformation ◽  
Carbon Steel ◽  
Equal Channel Angular Pressing ◽  
Martensitic Steel ◽  
Medium Carbon Steel ◽  
Optimal Size ◽  
Tempering Temperature ◽  
Medium Carbon ◽  
Angular Pressing ◽  
Average Grain Size

A new technology of preparing submicron medium-carbon steel quickly using martensitic steel by equal-channel angular pressing is developed. The technology combines martensite phase transformation with severe plastic deformation. In this research, martensitic steel is heated to 923K quickly and held for appropriate time, then equal-channel angular pressing is implemented. Supersaturated ferrites of average grain size within 0.5μm are obtained by the interaction of dislocation intersection, dynamic recrystallization and strain-induced phase transformation. At the same time, strain-induced phase transformation leads to dispersive precipitation of supersaturated carbon particles in the form of carbide inside grains or in grain boundaries. The optimal size of ferrite grains and the optimal distribution of carbides are acquired by controlling tempering temperature and time. The results show that ultra-fine grained materials prepared by this technology possess superior thermal stability.

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).   

Experimentally Based Study on the Effect of Initial Grain Size for Characterization of the Grain Coarsening Phenomenon During Hot Rolling of a Medium Carbon Steel

1999 ◽  
Vol 122 (1) ◽  
pp. 109-116 ◽  
Author(s):  
Yutaka Neishi ◽  
Masayoshi Akiyama ◽  
Kouichi Kuroda
Keyword(s):  
Grain Size ◽  
Carbon Steel ◽  
Hot Rolling ◽  
Hot Deformation ◽  
Medium Carbon Steel ◽  
Grain Coarsening ◽  
Medium Carbon ◽  
Light Reduction ◽  
Fine Grain ◽  
New Criterion

Laboratory experiments using a hot deformation simulator were carried out to clarify the effect of initial grain size on the grain coarsening phenomenon in hot metal working with light reduction. As an example of medium carbon steel, AISI1045 was adopted and specimens of various grain sizes were prepared by changing the thermo-mechanical histories. They were subjected to a hot deformation testing by the simulator. The threshold grain size to cause the grain coarsening phenomenon was then determined and a criterion was presented to ensure a fine grain after hot rolling. The validity of the new criterion was checked through hot rolling of bars by a prototype mill in a laboratory. [S1087-1357(00)00801-7]

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