The Assessment Of The Structure And Properties Of High-Carbon Steel Wires After The Process Of Patenting With Induction Heating

Abstract One of the most important types of heat treatment that high-carbon steel wires are subjected to is the patenting treatment. This process is conducted with the aim of obtaining a fine-grained uniform pearlitic structure which will be susceptible to plastic deformation in drawing processes. Patenting involves two-stage heat treatment that includes heating the wire up to the temperature above Ac3 in a continuous heating furnace (in the temperature range of 850÷1050°C) followed by a rapid cooling in a tank with a lead bath down to the temperature range of 450÷550°C. The patenting process is most significantly influenced by the chemistry of the steel being treated, as well as by the temperature and the rate of heating and cooling of the wire rod or wire being patented. So far, heating up to the austenitizing temperature has been conducted in several-zone continuous gas-fired or electric furnaces. Recently, attempts have been made in a drawing mill to replace this type of furnace with fast induction heating, which should bring about an energy saving, as well as a reduced quantity of scale on the patented wire. This paper presents the analysis of the structure and mechanical properties of wires of high-carbon steel with a carbon content of 0.76%C after the patenting process using induction heating for different levels of the coil induction power.

Download Full-text

Effect of Heat Treatment on the Microstructure and Mechanical Properties of Ultra-High-Carbon Steel

Metal Science and Heat Treatment ◽

10.1007/s11041-021-00637-1 ◽

2021 ◽

Author(s):

Qingsuo Liu ◽

Jinman Li ◽

Xin Zhang ◽

Tianyu Cui ◽

Huayi Liu

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Carbon Steel ◽

High Carbon Steel ◽

High Carbon ◽

Microstructure And Mechanical Properties

Download Full-text

Pengaruh Teknik Tempa Lipat Terhadap Perubahan Sifat Mekanik Material AISI O1 Pada Pembuatan Pisau Tanto

Jurnal Rekayasa Energi dan Mekanika ◽

10.26760/jrem.v1i1.51 ◽

2021 ◽

Vol 1 (1) ◽

pp. 51

Author(s):

Alfan Ekajati Latief ◽

Syahril Sayuti ◽

Rakean Wide Windujati

Keyword(s):

Heat Treatment ◽

Carbon Steel ◽

Treatment Process ◽

Lath Martensite ◽

High Carbon Steel ◽

Medium Carbon Steel ◽

Raw Material ◽

High Carbon ◽

Micro Structure ◽

Medium Carbon

ABSTRAKTanto merupakan senjata tajam yang berasal dari Jepang dan merupakan senjata kedua bagi para Samurai di Jepang. Tanto biasa terbuat dari baja karbon menengah hingga baja karbon tinggi yang. Material baja yang digunakan untuk pembuatan Tanto dalam penelitian ini adalah baja AISI seri O1 karena memiliki karakteristik sifat mampu bentuk yang baik serat dapat dikuatkan melalui proses heat treatment. Material baja ini dibuat dengan proses tempa lipat dengan variasi tempa empat lipatan dan satu lipatan. Pembuatan Tanto dan spesimen uji dilakukan dengan proses tempa lipat secara konvensional menggunakan tungku arang, dengan temperatur tempa rata-rata yaitu ±1200oC, kemudian dilanjutkan dengan quenching pada temperatur ± 850oC, serta tempering pada temperatur ±250oC. Penelitian ditujukan untuk mengetahui pengaruh dari proses tempa empat lipatan dan tempa satu lipatan terhadap sifat mekanik, yaitu kekerasan dan kekuatan impak serta untuk melihat perubahan pada struktur mikro. Hasil pengujian menunjukkan bahwa nilai kekerasan paling tinggi sebesar41HRC yang dimiliki oleh pada raw material, ,sedangkan nilai impak paling tinggi sebesar 224,02 Joule/cm² ayng dicapai oleh material dengan proses tempa empat lipatan, Fasa akhir yang ditemukan pada baja tempa empat lipatan adalah bainit dan martensit, sementara perlit dan ferit ditemukan pada baja satu lipatan, dan lath martensit ditemukan pada pada raw material Kata kunci: Pisau Tanto, Tempa lipat ,Quenching, Tempering, Uji Impak ABSTRACT Tanto is a sharp weapon originating from Japan and is the second weapon for Samurai in Japan. Tanto is usually made of medium carbon steel to high carbon steel. The material which is used in this research is AISI O1 series steel because of its high ability to be formed and also can be made tough through a heat treatment process. This steel is made by folding forge process, with variation in number of folding, which is 4 folds and 1 fold. The making of Tanto and test specimens was carried out by conventional fold forging processes by using a charcoal furnace, with an average forging temperature at ± 1200oC, continue with quenching at ± 850oC, and tempering at ± 250oC. The research is carried out in order to determine the effect of the four-folds forging and one-fold forging to the mechanical behavior, which are hardness and impact strength, and also to see change in its micro structure. The test that have been carried out shows that the highest hardness value of 41 HRC owned by raw material, while the highest impact value of 224.02 Joules / cm² obtained by material with four layer forging process. Final phases that found in the four-fold forged steel are bainite and martensite, pearlite and ferrite found in one-fold forged steel. and lath martensite in found in the raw material. Keywords: Tanto Knife, Folding Forging, Quenching, Tempering, Testing, Impact Tests

Download Full-text

The Effect of the Graphitizing Heat Treatment and Boron Content on Boron Distribution in High Carbon Steel

Materials Science Forum ◽

10.4028/www.scientific.net/msf.475-479.4157 ◽

2005 ◽

Vol 475-479 ◽

pp. 4157-4160 ◽

Cited By ~ 2

Author(s):

Kee Do Woo ◽

S.W. Kim ◽

Dong Ki Kim

Keyword(s):

Heat Treatment ◽

Carbon Steel ◽

Electron Probe ◽

Direct Relationship ◽

Boron Content ◽

High Carbon Steel ◽

High Carbon ◽

X Ray ◽

Boron Segregation ◽

Boron Distribution

It is convenient to analyze the distribution of boron in high carbon steel with boron, simply using neutron-induced radiography with a neutron fluency of 1.9 x 1013 [cm-2]. It was revealed by the neutron-induced radiography that the distribution of boron was dependent on boron contents, graphitizing temperature and time. The density of boron track increased with increasing boron contents. But the density of the boron track and graphite in high carbon steel graphitized at 700°C is higher than that of high carbon steel graphitized at 750°C. The density of graphite in high carbon steel also depends upon the content of boron and the graphitizing temperature. The shape of the boron track was changed from sphere to rod type when annealed at 800°C, in steel containing 50ppm of boron, due to different phases of boride. The distribution of boron segregation or boronrich precipitates in high carbon steel was well documented with a neutron-induced radiography, but the direct relationship between graphite and boron was not clarified by it. Furthermore, the analysis of electron probe X-ray microanalyzer (EPMA) also showed that the high amount of boron coexisted with carbon in graphite in high carbon steel.

Download Full-text

Changes in the phase composition, structure, and hardness of “titanium carbide-high-carbon steel” cermets under heat treatment

Metal Science and Heat Treatment ◽

10.1007/s11041-007-0030-9 ◽

2007 ◽

Vol 49 (3-4) ◽

pp. 167-171 ◽

Cited By ~ 3

Author(s):

N. Frage ◽

L. M. Kaputkina ◽

V. G. Prokoshkina ◽

D. E. Kaputkin ◽

N. R. Sverdlova

Keyword(s):

Heat Treatment ◽

Phase Composition ◽

Carbon Steel ◽

Titanium Carbide ◽

High Carbon Steel ◽

High Carbon ◽

Composition Structure

Download Full-text

Optimization of Lead Patenting Process for High Carbon Steel Wires

Proceedings of the National Academy of Sciences India Section A Physical Sciences ◽

10.1007/s40010-017-0351-z ◽

2017 ◽

Vol 87 (2) ◽

pp. 267-278 ◽

Cited By ~ 1

Author(s):

Shamsher Singh Bargujer ◽

Narender M. Suri ◽

Rajendra M. Belokar

Keyword(s):

Carbon Steel ◽

High Carbon Steel ◽

High Carbon ◽

Steel Wires

Download Full-text

The Influence of Die Approach and Bearing Part of Die on Mechanical-Technological Properties of High Carbon Steel Wires / Wpływ Części Roboczej I Kalibrującej Ciągadła Na Własności Mechaniczno-Technologiczne Drutów Ze Stali Wysokowęglowej

Archives of Metallurgy and Materials ◽

10.2478/v10172-012-0123-3 ◽

2012 ◽

Vol 57 (4) ◽

pp. 1105-1110 ◽

Cited By ~ 4

Author(s):

J. Adamczyk ◽

M. Suliga ◽

J.W. Pilarczyk ◽

M. Burdek

Keyword(s):

Carbon Steel ◽

High Carbon Steel ◽

Effective Strain ◽

Total Elongation ◽

Strength Properties ◽

Drawing Process ◽

Technological Properties ◽

High Carbon ◽

Steel Wires ◽

Bearing Part

In this work the influence of the die approach and bearing part of die on mechanical-technological properties of high carbon steel wires has been assessed. The drawing process of φ5.5 mm wires to the final wire of φ2.9 mm was conducted in 6 passes, by means of a multi-die drawing machine Koch type. The drawing speeds in the last passes were: 7 m/s. For wires drawn according to four variants the investigation of mechanical-technological properties has been carried out, in which yield strength, tensile strength, uniform and total elongation, reduction of area, the number of twists and the number of bends were determined. On the basis of numerical analyses wire drawing process, the influence of geometry of die on redundant strain and effective strain has been determined. The investigations have shown the essential influence of geometry of die on mechanical-technological properties of high carbon steel wires. It has been shown that the increase of strength properties in wires drawn with high die angle is related to the occurrence in their bigger effective strain.

Download Full-text