Influence of treatment conditions on the corrosion resistance of low temperature nitrided austenitic stainless steels

被引：0

作者：

Borgioli, F. ^{[1
]}

Galvanetto, E. ^{[1
]}

Caporali, S. ^{[1
]}

Gabellini, L. ^{[1
]}

Bacci, T. ^{[1
]}

机构：

[1] Univ Firenze, Florence, Italy

来源：

METALLURGIA ITALIANA | 2022年 / 114卷 / 02期

关键词：

NITRIDING; S PHASE; AUSTENITIC STAINLESS STEELS; LOCALISED CORROSION; ELECTROCHEMICAL-BEHAVIOR;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Low temperature nitriding is an effective method of surface modification of austenitic stainless steels, which allows to improve their surface hardness and tribological properties, but the treatment conditions depend on steel composition. In this research the influence of nitriding conditions on the microstructural, mechanical and corrosion resistance characteristics of the modified surface layers has been evaluated for a Ni-free steel, UNS S29225, and, for comparison, for AISI 316L and AISI 202 steels. The modified surface layers consist mainly of the so called S phase. Ni-free steel is more sensitive to nitride precipitation than AISI 316L, so that treatments should be carried out at temperatures lower than 400 degrees C. By choosing the appropriate nitriding temperature and duration it is possible to obtain a significant increase of corrosion resistance in a 5% NaCl solution, in comparison with the untreated alloy.

引用

页码：7 / 12

页数：6

共 12 条

[1] Current status of supersaturated surface engineered S-phase materials
Bell, Thomas
[J]. SURFACE ENGINEERING (ICSE 2007), 2008, 373-374 : 289 - 295
[2] From Austenitic Stainless Steel to Expanded Austenite-S Phase: Formation, Characteristics and Properties of an Elusive Metastable Phase
Borgioli, Francesca
[J]. METALS, 2020, 10 (02)
[3] Low temperature nitriding of AISI 300 and 200 series austenitic stainless steels
Borgioli, Francesca
Galvanetto, Emanuele
Bacci, Tiberio
[J]. VACUUM, 2016, 127 : 51 - 60
[4] Formation and microstructural characterisation of S-phase layers in Ni-free austenitic stainless steels by low-temperature plasma surface alloying
Buhagiar, Joseph
Li, Xiaoying
Dong, Hanshan
[J]. SURFACE & COATINGS TECHNOLOGY, 2009, 204 (03) : 330 - 335
[5] Surface characterization, electrochemical behaviour and cytotoxicity of UNS S31254 stainless steel for orthopaedic applications
Chaves de Andrade Afonso, Monica Luisa
Vera Villamil Jaimes, Ruth Flavia
Nascente, Pedro A. P.
Rogero, Sizue Ota
Leite Agostinho, Silvia Maria
[J]. MATERIALS LETTERS, 2015, 148 : 71 - 75
[6] S-phase surface engineering of Fe-Cr, Co-Cr and Ni-Cr alloys
Dong, H.
[J]. INTERNATIONAL MATERIALS REVIEWS, 2010, 55 (02) : 65 - 98
[7] In situ transformation of nitrogen-induced hcp martensite in plasma source ion-nitrided austenitic stainless steel
Lei, MK
Huang, Y
Zhang, ZL
[J]. JOURNAL OF MATERIALS SCIENCE LETTERS, 1998, 17 (14) : 1165 - 1167
[8] Recent developments in stainless steels
Lo, K. H.
Shek, C. H.
Lai, J. K. L.
[J]. MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2009, 65 (4-6) : 39 - 104
[9] Status of nickel free stainless steel in biomedical field: A review of last 10 years and what else can be done
Patnaik, Lokeswar
Maity, Saikat Ranjan
Kumar, Sunil
[J]. MATERIALS TODAY-PROCEEDINGS, 2020, 26 : 638 - 643
[10] Somers MAJ, 2015, WOODH PUBL SER METAL, P557, DOI 10.1533/9780857096524.4.557

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