Increasing surface hardness of austenitic stainless steels by pack nitriding process

Li, K.Y.; Xiang, Zhen

doi:10.1016/j.surfcoat.2009.12.022

Cited by 21 publications

(8 citation statements)

References 25 publications

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“…The growth rate of the nitrided layer can be increased by increasing the nitriding temperature, which is the basis for development of the solution nitriding or high temperature gas nitriding process for stainless steels [7][8] [9].…”

Section: Figure 1 Schematic Representation Of the Nitration Processmentioning

confidence: 99%

Surface Treatment Effects of Nitriding Parameters on 2344 Tool Steel

et al. 2024

IJFMR

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In this study; The effects of different processes applied to heat-treated tool steels on the hardness and wear resistance of the steel were examined. In line with this study, the effects of steels subjected to different times and processes on diffusion depth, white layer thickness and hardness were investigated. The molds were tested with the extrusion process in the determined parameters and their wear resistance was determined. After examining the results, the most suitable parameters for mold steels were determined.

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Section: Figure 1 Schematic Representation Of the Nitration Processmentioning

confidence: 99%

Surface Treatment Effects of Nitriding Parameters on 2344 Tool Steel

et al. 2024

IJFMR

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“…The smaller nitrogen percentage diffused on greater depths caused the gradual drop. Furthermore, the high hardness at the beginning of the curve indicates the formation of new phases in the surface 31) . A hardness curve of 3 hours at 500°C declined from the start, indicating no compound zone and was formed at a distance of 0 to 5µm.…”

Section: Hardness Profile Curvementioning

confidence: 99%

Surface Modification and Hardness Behavior of AISI 304 as an Artificial Hip Joint using Ammonia and Scallop Shell Powder as a Nitriding Agent

Triyono¹,

Rahajeng²,

Surojo³

2021

Evergreen

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Surface modification was carried out in AISI 304 using ammonia and scallop shell powder as the nitriding agent. Furthermore, the temperature variations used were 500°, 550° and 600°C within the durations of 3, 5, and 7 hours. The results showed that the highest point of specimen hardness reached 600°C at 7 hours (1246 VHN) with a nitrogen content of 15.35% and a nitride layer depth of 141.64 µm. In addition, this value was higher than other implant materials, namely AISI 316L (316 VHN), Ti6Al4V (435 VHN), CrCoMo (351 VHN) and human bone (129 VHN).

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“…As an interstitial solid solution atom, N can interact with other elements in Fe-based coatings to improve the strengths, toughnesses, abrasion resistances, and corrosion resistances of the coatings [23][24][25][26]. Ti and Nb readily form compounds with N, and TiN and NbN can be formed in the coatings to improve their performances [27,28].…”

Section: Introductionmentioning

confidence: 99%

Refining effect of nitrogen on M₇C₃ carbides in hypereutectic Fe–25Cr–4C–0.5Ti–0.5Nb hardface coatings

Wang

Xing

Zhou

et al. 2019

Materials Science and Technology

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Hypereutectic Fe–Cr–C–Ti–Nb coatings with N additives were developed by surface-hardening welding (hardfacing). The experimental results showed that the primary M7C3 carbides were refined by the N additives in the coatings. Based on the micro-morphologies of M7C3 and (Ti,Nb)(C,N), the (Ti,Nb)(C,N) was present inside the primary M7C3 carbides, and they were tightly combined. The mismatch between the (010) crystal plane of M7C3 and the (110) crystal plane of (Ti,Nb)(C,N) was 6.15%, which indicated that (Ti,Nb)(C,N) was moderately effective as a heterogeneous nucleus of M7C3 carbides. Therefore, the preferentially precipitated (Ti,Nb)(C,N) in the Fe–Cr–C–Ti–Nb coating was the heterogeneous nucleus of the primary M7C3 carbides and thereby refined the primary M7C3 carbides.

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Increasing surface hardness of austenitic stainless steels by pack nitriding process

Cited by 21 publications

References 25 publications

Surface Treatment Effects of Nitriding Parameters on 2344 Tool Steel

Surface Treatment Effects of Nitriding Parameters on 2344 Tool Steel

Surface Modification and Hardness Behavior of AISI 304 as an Artificial Hip Joint using Ammonia and Scallop Shell Powder as a Nitriding Agent

Refining effect of nitrogen on M₇C₃ carbides in hypereutectic Fe–25Cr–4C–0.5Ti–0.5Nb hardface coatings

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Increasing surface hardness of austenitic stainless steels by pack nitriding process

Cited by 21 publications

References 25 publications

Surface Treatment Effects of Nitriding Parameters on 2344 Tool Steel

Surface Treatment Effects of Nitriding Parameters on 2344 Tool Steel

Surface Modification and Hardness Behavior of AISI 304 as an Artificial Hip Joint using Ammonia and Scallop Shell Powder as a Nitriding Agent

Refining effect of nitrogen on M7C3 carbides in hypereutectic Fe–25Cr–4C–0.5Ti–0.5Nb hardface coatings

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Refining effect of nitrogen on M₇C₃ carbides in hypereutectic Fe–25Cr–4C–0.5Ti–0.5Nb hardface coatings