Microstructure Change in ASSAB 760 Steel during Cementation and Quenching Process

Anggraini, Lydia; Adikusumo, Muhammad; Dahar, Rosfian Arsyah

doi:10.4028/www.scientific.net/msf.872.50

Cited by 2 publications

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References 10 publications

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“…A punch holder is one part of the components included in the tool holder. Cementation, nitriding, and nitro-cementation are parts of the surface hardening processes [10].…”

Section: Introductionmentioning

confidence: 99%

Hardenability of ASSAB 760 Steel during Tempering for Punch Holder Applications

Anggraini

2017

SSP

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The purpose of this research was to evaluate the hardenability of ASSAB 760 (equivalent to AISI 1045 and JIS S45C) steel subjected to the gas cementation, the quenching and the tempering processes. Gas cementation is a heat treatment surface process by means of carbon diffusing into steel. This process is carried out in a furnace in a fluidized bed by using media of liquid petroleum gas (LPG) and nitrogen gas at a temperature of 1203 K and various holding times of 7.2, 10.8 and 14.4 ks, respectively. The rapid quenching process is carried out in an oil media for 420 sec. In order to remove the tension in the specimen, the tempering process is carried out in a furnace at a low temperature of 473 K with holding time of 3.6 ks. The result shows that, the Vickers hardness values can be achieved from 568 to 584 HV. Therefore, it is confirmed that by using these processes, the hardening of ASSAB 760 steel can be carried out and the punch holder can be manufactured.

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“…A punch holder is one part of the components included in the tool holder. Cementation, nitriding, and nitro-cementation are parts of the surface hardening processes [10].…”

Section: Introductionmentioning

confidence: 99%

Hardenability of ASSAB 760 Steel during Tempering for Punch Holder Applications

Anggraini

2017

SSP

Self Cite

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Diffusion Nitride Coatings for Heat-Resistant Steels

Berladir,

Hovorun,

Ivanov

et al. 2023

Materials

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The effect of ion nitriding and nitriding in a melamine-based powder mixture on the structure and properties of AISI A290C1M steel was studied in the paper. Using ion nitriding made it possible to shorten the technological cycle’s duration by 5–6 times compared to two-stage nitriding, optimize the diffusion layer’s composition, provide a technologically simple process automation scheme, and improve the quality of nitride coatings. After the proposed mode of ion nitriding, a saturated layer depth of 0.25–0.32 mm, hardness up to 1000 HV, and an increase in wear resistance by 2.17 times were obtained. Using 95% melamine + 5% sodium fluoride during nitriding in a powder mixture significantly simplified the technological process. It did not require additional expensive equipment, which in turn significantly simplified the nitriding process with energy savings. The proposed technology and the composition of the mixture contributed to a significant acceleration of the nitriding process of AISI A290C1M steel, compared to traditional gas nitriding, and to obtain a hardness of the nitride layer of 970 HV and an increase in wear resistance by 2.6 times. A nitriding speed is explained by a significantly higher amount of atomic nitrogen when using melamine instead of ammonia and by the almost simultaneous disintegration of nanodispersed particles when the nitriding temperature was reached. After nitriding in a powder mixture, steel was subject to the slightest wear.

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Microstructure Change in ASSAB 760 Steel during Cementation and Quenching Process

Cited by 2 publications

References 10 publications

Hardenability of ASSAB 760 Steel during Tempering for Punch Holder Applications

Hardenability of ASSAB 760 Steel during Tempering for Punch Holder Applications

Diffusion Nitride Coatings for Heat-Resistant Steels

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