Effect Of Heat Treatment Process On Mechanical Properties Of Low Carbon Steel

2020 ◽  
Vol 14 (5) ◽  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Carbon Steel ◽  
Treatment Process ◽  
Low Carbon Steel ◽  
Heat Treatment Process ◽  
Low Carbon

Study on Thickness of Low Carbon Steel in Rapid Cooling Process: A Short Review

2020 ◽  
Vol 4 (1) ◽  
pp. 52-59
Author(s):  
Siti Noradila Abdullah ◽  
Norazlianie Sazali ◽  
Ahmad Shahir Jamaludin
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Carbon Steel ◽  
Carbon Content ◽  
Treatment Process ◽  
Low Carbon Steel ◽  
Case Hardening ◽  
Heat Treatment Process ◽  
Low Carbon ◽  
Molecular Arrangement

For any process that engaged with changes of chemical properties and physical is a heat treatment process by cooling or heating a metal. The technique for heat treatment includes, case hardening, annealing, tempering and precipitation strengthening, quenching and tempering. The mechanical properties like hardness, toughness and ductility can be altered by intense heat treating on steel to produce different mechanical properties. This matters with the carbon content in low carbon steel such as mild steel with above 0.4% carbon, in Medium carbon steel with above 0.8% carbon, and in High Carbon Steel with up to 2% carbon content in steels. To change the characteristics of metals and alloys is by heat treatment process where by altering the diffusion and cooling rate within its microstructure to make them suitable for any kind of usage by changing the grain size at different phases and changing the molecular arrangement.

scholarly journals PENGARUH MEDIA QUENCHING TERHADAP KEKERASAN DAN STRUKTUR MIKRO PASKA HARDFACING

2018 ◽  
Vol 3 (2) ◽  
pp. 66-72
Author(s):  
Basori Basori
Keyword(s):  
Heat Treatment ◽  
Carbon Steel ◽  
Treatment Process ◽  
Low Carbon Steel ◽  
Optical Microscope ◽  
Heat Treatment Process ◽  
Low Carbon ◽  
Water Media

AbstrakHardfacing dengan proses SMAW merupakan salah satu teknik yang paling banyak digunakan, karena sangat mudah diaplikasikan seperti pada scoops lift buckets , Ripper Teeth, dan Dozer Blades.. Hardfacing pada komponen ini bertujuan untuk mencegah keausanan yang diakibatkan benturan atau gesekan saat penggalian tanah, pengumpulan tanah, pengangkutan tanah pada saat alat berat sedang bekerja. Setelah baja karbon rendah di hardfacing, kemudian dilakukan perlakuan panas dengan Quenching dengan tujuan lebih meningkatkan kekerasan dari material. Pembuatan spesimen dilakukan dengan teknik SMAW polaritas AC arus 100A menggunakan elektroda HV 450 kemudian spesimen di potong, di lakukan proses heat treatment. Setelah selesai kemudian speseimen di uji keras dan dilakukan pengamatan dengan mikroskop optik. Media air merupakan media yang paling optimal dalam menigkatkan kekerasan dari hasil hardfacing. Nilai kekerasan yang didapatkan dari hasil quenching dengan media air adalah sebesar 422.66 VHNKata kunci: Hardfacing, SMAW, Struktur Mikro dan Kekerasan AbstractHardfacing with the SMAW process is one of the most common techniques, because it is very easy to apply as in lift buckets Scoops, Ripper Teeth, and Dozer Blades. Hardfacing in this component for the situation caused by collisions or friction during excavation of land, transporting the soil when the machine is working. After low carbon steel hardfacing, then heat is done with quenching in order to increase the hardness of the material. The making of specimens was carried out using the SMAW technique using HV 450 electrodes and then the specimens were cut, and the heat treatment process was carried out. After completion, the experiment was carried out and an observation with an optical microscope was carried out. Water media is the most optimal media in increasing the hardness of hardfacing results. The value obtained from the quenching with water media is 422.66 VHN Keywords: Hardfacing, SMAW, Microstructure and Hardness

Heat Treatment Conditions of Low Carbon Steel Part Used in the Deep Sea

2010 ◽  
Author(s):  
Sang-Seop Lim ◽  
Chung-Gil Kang
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Carbon Steel ◽  
Deep Sea ◽  
Low Carbon Steel ◽  
High Strength ◽  
Steel Part ◽  
Heat Treatment Condition ◽  
Low Carbon ◽  
Oil Consumption

With increasing oil consumption, we have to find more oil resources in the deep sea. The extreme working condition of the deep sea requires high toughness and high strength values at low temperatures. Academic institutions limited the chemical composition of the requested casting steel to meet their requirements of fracture toughness and weldability. Thus, the carbon content was set approximately 0.10% based on classification societies which required specific mechanical properties of strength, elongation, reduction area and impact energy (−40°C). In this study, we find the optimal heat treatment condition of low carbon steel (0.10%C) to obtain the desired mechanical properties at low temperature (−40°C) according to different quenching parameters (heating times) and tempering parameters (heating temperatures, cooling methods).

scholarly journals Study on Mechanical Properties of crack Healing of low carbon Steel based on cyclic Phase Transformation Heat treatment

2021 ◽  
Vol 2133 (1) ◽  
pp. 012046
Author(s):  
Lei Chu
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Tensile Strength ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Crack Healing ◽  
Properties Of Materials ◽  
Metal Materials ◽  
Cyclic Phase

Abstract With the rapid development of materials, metal materials are used less and less, but at this stage, metal materials are still widely used, and iron and steel materials are the most widely used. Cracks often appear in the process of metal material processing and use, and these cracks will have a certain impact on the use of metal materials. The existence of microcracks will affect the mechanical properties of materials to some extent, but in most cases, the mechanical properties of materials will be greatly reduced, and in serious cases, metal materials will break directly in the process of use or processing. The crack healing process needed after the emergence of cracks can effectively change this situation, but so far, the research on metal crack healing is still not perfect. In this paper, taking the internal crack of low carbon steel as the object, the recovery of mechanical properties of low carbon steel by cyclic phase transformation heat treatment was studied. The results show that with the increase of the healing area, the microhardness of the area after crack healing also increases, and the tensile strength of the specimen also increases after the healing. When the healing area is similar, increasing the healing time and temperature will result in grain coarsening, resulting in the decrease of microhardness and tensile strength in the crack healing zone.

Effect of Heat Treatment Process on Microstructure and Properties in Low Carbon Si-Mn Q&P Steel

2011 ◽  
Vol 233-235 ◽  
pp. 1009-1013
Author(s):  
Cai Zhao ◽  
Di Tang
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Heat Treatment ◽  
Retained Austenite ◽  
Treatment Process ◽  
Lath Martensite ◽  
Heat Treatment Process ◽  
Low Carbon ◽  
Transmission Electron ◽  
Partitioning Time

The mechanical properties of Low Carbon Si-Mn Q&P steel are strongly affected by the conditions of heat treatment. Microstructures and mechanical properties of Low Carbon Si-Mn Q&P steel at different partitioning temperature and holding time was investigated. The microstructure was analysed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It is shown that the microstructure of Q&P steel is carbon-depleted lath martensite and carbon enriched retained austenite. The retained austenite appear film-type between the laths. Higher partitioning temperature and longer partitioning time can obtain more retained austenite. It is shown that with increasing partitioning time ultimate tensile strength decreases, while elongation increases obviously. Carbon-enriched metastable retained austenite is considered beneficial because the TRIP phenomenon during deformation can contribute to formability and energy absorption.

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