scholarly journals Analisis Pengaruh Media Pendingin Terhadap Kekerasan Baja S45C Pada Proses Hardening-Tempering

2021 ◽  
Vol 3 (1) ◽  
pp. 31-38
Author(s):  
Alfian Siswara Arlingga ◽  
Somawardi - ◽  
Sugianto -
Keyword(s):  
Heat Treatment ◽  
Mineral Water ◽  
Treatment Process ◽  
Salt Water ◽  
Coconut Water ◽  
Heat Treatment Process ◽  
Water Cooling ◽  
Table Salt ◽  
Hardness Level ◽  
Cooling Media

This study used an experimental method, in the form of the heat treatment hardening  930⁰C with the variations in the cooling media of the coconut water, table salt water, mineral waterwater, coolant radiator, and dromus water and variations in temperatures of tempering 200⁰C, 420⁰C, and 600⁰C, the specimens were cylindrical in diameter 25 mm and 20 mm in length, this study aims to determine the optimum hardness value of S45C steel specimens due to the heat treatment process hardening-tempering. From the results of the study, there is the effect of hardening 930⁰C there is the most optimal hardness value found in coconut water cooling media with the hardness level of 53.5 HRC. Under the influence of tempering 200⁰C there is the optimum hardness value found from the influence of mineral water cooling media with the hardness level of 50.7 HRC, while the influence of tempering 420⁰C there is the most optimal hardness value from the influence of mineral water cooling media with the hardness level of 41.8 HRC, and for tempering effect 600⁰C there is the most optimal hardness value available from the influence of the coconut water cooling media with the hardness level of 35.93 HRC.

scholarly journals Analisa Pengaruh Variasi Media Pendingin Pada Proses HeatTreatment Metode Hardening-Tempering Material Baja S45C Terhadap Sifat Mekanik dan Struktur Mikro

2020 ◽  
Vol 15 (3) ◽  
pp. 199
Author(s):  
Aldi Wahyu Permana ◽  
Ratna Dewi Anjani ◽  
Iwan Nugraha Gusniar
Keyword(s):  
Heat Treatment ◽  
Salt Water ◽  
Coconut Water ◽  
Water Cooling ◽  
Cooling Medium ◽  
Research Activities ◽  
Hardening Process ◽  
Metal Metal ◽  
Cooling Media ◽  
Tempering Process

<p><em>In Our life, we always life with any tools and technology for improve our life. We can find many tools and other technolgy are made from metal. Of course, we need metals which have a characteristic for improve that inquiry, for example in terms of hardness in metal. Metal hardness can be increased in several ways. One of them is the hardening process. This process is a process of heat treatment of metal by heating and then cooling it to a certain temperature. In the traditional market, a lot of shredded coconut water is not used and can be used as a cooling medium in the hardening process. Therefore, the author will use the results of this wate shredded coconut water as a cooling medium for the hardening process.  Researchers  examined  the  effect  of  variations in heat  treatment  process  cooling media  on mechanical properties and microstructure with three variations of coolant. temperature 865 </em><em>⁰</em><em>C for hardening process and 465 C for tempering process. research activities include hardness and micro structure testing. The results showed that the hardening process salt water cooling medium had the highest hardness value of 275.6Hv while the lowest hardness was  obtained in the coconut water cooling medium  which had carried out the tempering process with a hardness of 219.3Hv. This is influenced by SOQ (Severity Of Quenching) or what is called the ability of the cooling media, for salt water the value is 5.0 for SOQ and for coconut water below 2.055. Meanwhile, for the microstructure, it can be seen that the hardening process brine cooling medium has a finer structure than the other cooling specimens. Meanwhile, in the tempering process, martensite turned into finer ferrite cementite with a hardness of 269.3Hv</em></p>

Study on the Heat Treatment Process of Ultra Thick Plate of 12Cr2Mo1R Pressure Vessel Steel

2014 ◽  
Vol 556-562 ◽  
pp. 476-479
Author(s):  
Ming Xing Zhou ◽  
Guang Xu ◽  
Hai Lin Yang ◽  
Tao Xiong
Keyword(s):  
Heat Treatment ◽  
Pressure Vessel ◽  
Thick Plate ◽  
Treatment Process ◽  
Pressure Vessel Steel ◽  
Heat Treatment Process ◽  
Water Cooling ◽  
Simulation Experiments ◽  
Vessel Steel ◽  
Element Simulation

The heat treatment process, normalizing plus tempering, of 150 mm-thick plate of 12Cr2Mo1R pressure vessel steel was proposed according to the results of finite element simulation and static CCT curve obtained by thermal simulation experiments. After normalizing at 910 °C for 10 minutes followed by water cooling and tempering at 650 °C for 60 minutes, the microstructure at 1/4 position along the thickness direction of the thick plate consists of bainite and all the mechanical properties meet delivery requirements.

scholarly journals Effect of Holding Time and Cooling Media on Heat Treatment Process to Gear Motor Indopart Hardness

2021 ◽  
Vol 1125 (1) ◽  
pp. 012116
Author(s):  
Klemens A. Rahangmetan ◽  
Cipto ◽  
Christian W. Wullur ◽  
D Parenden ◽  
Farid Sariman
Keyword(s):  
Heat Treatment ◽  
Treatment Process ◽  
Holding Time ◽  
Heat Treatment Process ◽  
Cooling Media

KARAKTERISASI KEKERASAN DAN STRUKTUR MIKRO BAJA AISI 410 PADA PROSES TEMPERING DENGAN VARIASI MEDIA PENDINGIN

ROTOR ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 43
Author(s):  
Jamaludhin Rais ◽  
Sunardi Sunardi ◽  
Erny Listijorini
Keyword(s):  
Heat Treatment ◽  
Treatment Process ◽  
Martensite Lath ◽  
Heat Treatment Process ◽  
Micro Structure ◽  
Cooling Medium ◽  
Used Oil ◽  
Quenching Process ◽  
Material Sample ◽  
Cooling Media

In AISI 410 steel, the characteristic changes observed in this study were the value of hardness, and microstructure shape. Material samples heated on temperature 9000C and held for 45 minutes, with cooling medium variation used are water, used oil, and SAE 20W-50 oil. In the process, tempering the material sample returns heated on 3000C and held for 15 minutes, then cooled in the room open. The results showed that the microstructure formed in AISI 410 steel after heat treatment is martensite lath, ferrite and austenite. From the results has been obtained, that the quenching process with a variety of cooling media used and followed by the tempering process can affect the shape of the microstructure of AISI 410 steel, changes that occur are increase in the hardness value of the material. The results showed that the sample quenching water had the highest hardness is 378 HV, followed by quenching of SAE 20W-50 oil and used oil with grades of 377 and 362 HV, respectively. The increase in hardness value occurs due to changes in the micro structure that occur due to the heat treatment process. The increase in the value of hardness that occurred in the material was 143.7%.

Optimization of Heat Treatment Process of ZE41A Magnesium Alloy Using Grey- Based Taguchi Method

2008 ◽  
Vol 3 (2) ◽  
pp. 63-69
Author(s):  
M. Sivapragash ◽  
◽  
V. Sateeshkumar ◽  
P.R. Lakshminarayanan ◽  
R. Karthikeyan ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Magnesium Alloy ◽  
Taguchi Method ◽  
Treatment Process ◽  
Heat Treatment Process

EFFECT ON HARDNESS and MICRO STRUCTURAL BEHAVIOUR OF TOOL STEEL AFTER HEAT TREATMENT PROCESS

2017 ◽  
Vol 4 (24) ◽  
Author(s):  
Karanbir Singh ◽  
Aditya Chhabra ◽  
Vaibhav Kapoor ◽  
Vaibhav Kapoor
Keyword(s):  
Heat Treatment ◽  
Empirical Study ◽  
Tool Steel ◽  
Treatment Process ◽  
Heat Treatment Process ◽  
Structural Behaviour ◽  
Treatment Processes ◽  
En 31

This study is conducted to analyze the effect on the Hardness and Micro Structural Behaviour of three Sample Grades of Tool Steel i.e. EN-31, EN-8, and D3 after Heat Treatment Processes Such As Annealing, Normalizing, and Hardening and Tempering. The purpose of Selecting Tool Steel is Because Tool Steel is Mostly Used in the Manufacturing Industry.This study is based upon the empirical study which means it is derived from experiment and observation rather than theory.

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