Effect of heat treatment on properties and microstructure of steels

Kandpal, Bhaskar Chandra; Gupta, Dheeraj; Kumar, Ashok; Jaisal, Ashish Kumar; Ranjan, Atul; Srivastava, Ankit; Chaudhary, Prashant

doi:10.1016/j.matpr.2020.08.556

Cited by 19 publications

(6 citation statements)

References 1 publication

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“…Perubahan fasa martensit merupakan masa pergeseran dari fasa austenit [15] . Perlakuan panas yang digunakan untuk memodifikasi struktur mikro dan sifat mekanik bahan rekayasa, khususnya baja adalah annealing, normalizing, hardening dan tempering [16] . Hardening merupakan salah satu proses perlakuan panas yang dapat meningkatkan kekerasan baja dengan perlakuan panas mencapai suhu austenitisasi yaitu 760ºC, 770ºC, 780ºC, 790ºC dan 800ºC dan ditahan dengan waktu yang cukup, kemudian mendinginkannya dengan cepat untuk mendapatkan austenit yang homogen [17][18] .…”

Section: Pendahuluanunclassified

Karakterisasi Sifat Mekanik Dan Struktur Mikro Pada Baja Paduan Rendah Hasil Proses Hardening

Chamim

Margono

Hidayah

et al. 2023

JRM

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The purpose of this study was to determine how the mechanical properties and microstructure formed on low alloy steel (tooth bucket) heated at temperatures of 850 ⁰C and 850 ⁰C then held for 15 minutes after that it was cooled with oil. The material hardening process was carried out by testing the Vickers hardness, impact, and observing the microstructure using an optical microscope with 200x magnification. Hardness values obtained from low alloy steel after heat treatment at temperatures of 800 ⁰C and 850 ⁰C are 389.2 HV and 414.6 HV. The optimum hardness is obtained at a temperature of 850 ⁰C with an increase of about 1.14% compared to that of raw material, which is 364.5 HV. From the results of the impact test on heat treatment with a temperature of 850 ⁰C, the highest impact value is 0.574 Joule/mm2. Furthermore, the results of the microstructure on heat treatment at a temperature of 850 ⁰C resulted in homogeneous microstructures, namely chrome, martensite, and bainite.

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Section: Pendahuluanunclassified

Karakterisasi Sifat Mekanik Dan Struktur Mikro Pada Baja Paduan Rendah Hasil Proses Hardening

Chamim

Margono

Hidayah

et al. 2023

JRM

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“…By strategically adjusting the cooling rates at specific temperatures, step cooling can refine grain structure, precipitate desired phases, and alleviate residual stresses, all of which profoundly impact the material's performance. [2,3] The influence of step cooling on the microstructure and mechanical properties of steel has been the subject of extensive research. Various parameters, including cooling rates, holding times, and alloy compositions, have been investigated to elucidate their effects on the final properties of the material.…”

Section: Introductionmentioning

confidence: 99%

“…Understanding these relationships is crucial for optimizing the manufacturing processes and designing steel components with enhanced performance characteristics. [1][2][3] While substantial progress has been made in this field, there remain gaps in our knowledge regarding the precise mechanisms by which step cooling influences the microstructure and mechanical properties of steel. Furthermore, the practical implications of these findings for real world applications necessitate thorough examination and validation.…”

Section: Introductionmentioning

confidence: 99%

Step Cooling Influence on Microstructure & Mechanical Properties of Carbon Steel

2024

IJFMR

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This study delves into the impacts of step cooling on the microstructure and mechanical attributes of carbon steel. Step cooling, a methodical heat treatment process comprising sequential cooling phases, was administered to samples of carbon steel. Through optical microscopy, the evolution of microstructure, encompassing phase alterations and grain structure, was scrutinized. Mechanical traits, including hardness, tensile strength, were assessed via standardized tests, coupled with fractural structural analysis. The findings suggest that step cooling markedly affects microstructural refinement, modifying the distribution of present phases. Furthermore, discernible variations in mechanical properties were noted, revealing enhanced strength and toughness qualities in the step-cooled specimens when juxtaposed with those conventionally cooled. This investigation unveils valuable insights into the potential advantages of step cooling as a viable approach for augmenting the properties of carbon steel, thereby presenting avenues for optimizing its utilization in industrial settings.

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“…Quenching is a standard heat treatment process that is used to control the mechanical properties of solid materials. Specifically, hardness, ductility, impact resistance, and yield tensile strength can be modified by this process [1]. Also, electrical and thermal conductivity and corrosion tendency can be slightly changed by the quenching process [2].…”

Section: Introductionmentioning

confidence: 99%

Protection of carbon steel from wear by quenching with nanotechnology to use it in dies parts

Abdulhussein,

Khalil,

Ibrahim

et al. 2023

J Appl Eng Science

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Adding nanomaterials to quenching media is an innovative method to alter alloys' mechanical properties and enhance their resistance to wear. In this work, TiO2 nanoparticles were added to the oil as a quenching media in different mass percentages (0, 0.2, 0.4, and 0.6%) to identify the impact of adding TiO2 nanoparticles on wear resistance (dry sliding) and mechanical properties by microstructure analysis of carbon steel CK45 before and after the addition of nanofluid. The results reveal the critical role of adding nanomaterials in altering steel's mechanical properties and increasing its resistance to wear. Specifically, increasing the TiO2 nanoparticle percentage improves the wear resistance value under different loads (20, 30, and 40 N). Also, the homogenous microstructure and mechanical properties were enhanced after using nanotechnology. That means the nanotechnology can protect CK45 from wear to be used for dies structure parts by quenching process.

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Effect of heat treatment on properties and microstructure of steels

Cited by 19 publications

References 1 publication

Karakterisasi Sifat Mekanik Dan Struktur Mikro Pada Baja Paduan Rendah Hasil Proses Hardening

Karakterisasi Sifat Mekanik Dan Struktur Mikro Pada Baja Paduan Rendah Hasil Proses Hardening

Step Cooling Influence on Microstructure & Mechanical Properties of Carbon Steel

Protection of carbon steel from wear by quenching with nanotechnology to use it in dies parts

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