Cavitation erosion resistance of active screen-low temperature plasma nitrided AISI 410 martensitic stainless steel

L. A. Espitia; Hanshan Dong; Xiao Ying Li; C. E. Pinedo; A. P. Tschiptschin

Cavitation erosion resistance of active screen-low temperature plasma nitrided AISI 410 martensitic stainless steel

L. A. Espitia, Hanshan Dong, Xiao Ying Li, C. E. Pinedo, A. P. Tschiptschin

Metallurgy and Materials

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

AISI 410 martensitic stainless steel specimens were low temperature plasma nitrided at 400°C in a mixture of 75%N₂:25%H₂, during 20 h. Active screen technic was used to avoid any edge effect. The nitrided case is composed of expanded martensite (α'n) and ε-Fe₃N iron nitride, whilst chromium nitride precipitation was avoided. Surface hardness reached 1275 HV0.01. The transverse microhardness profile shows a gentle hardness gradient with a NHT nitrided case depth of 28 μm. The cavitation erosion mass losses were measured as a function of exposure time. The results showed a decrease of 27 times of the mass loss compared to the non-nitride specimens. Wear rate decreased from 2.56 mg/h for the non-nitrided condition to 0.085 mg/h after nitriding. Such results showed that low temperature plasma nitriding and the formation of expanded martensite are effective to increase cavitation erosion resistance of AISI 410 stainless steel.

Original language	English
Title of host publication	Materials Science and Technology Conference and Exhibition 2014, MS and T 2014
Publisher	Association for Iron and Steel Technology, AISTECH
Pages	1481-1487
Number of pages	7
Volume	3
ISBN (Electronic)	9781634397230
Publication status	Published - 1 Jan 2014
Event	Materials Science and Technology Conference and Exhibition 2014, MS and T 2014 - Pittsburgh, United States Duration: 12 Oct 2014 → 16 Oct 2014

Conference

Conference	Materials Science and Technology Conference and Exhibition 2014, MS and T 2014
Country/Territory	United States
City	Pittsburgh
Period	12/10/14 → 16/10/14

Keywords

Active screen plasma nitriding
Cavitation erosion
Martensitic stainless steel

ASJC Scopus subject areas

Energy Engineering and Power Technology
General Materials Science

Cite this

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title = "Cavitation erosion resistance of active screen-low temperature plasma nitrided AISI 410 martensitic stainless steel",

abstract = "AISI 410 martensitic stainless steel specimens were low temperature plasma nitrided at 400°C in a mixture of 75%N2:25%H2, during 20 h. Active screen technic was used to avoid any edge effect. The nitrided case is composed of expanded martensite (α'n) and ε-Fe3N iron nitride, whilst chromium nitride precipitation was avoided. Surface hardness reached 1275 HV0.01. The transverse microhardness profile shows a gentle hardness gradient with a NHT nitrided case depth of 28 μm. The cavitation erosion mass losses were measured as a function of exposure time. The results showed a decrease of 27 times of the mass loss compared to the non-nitride specimens. Wear rate decreased from 2.56 mg/h for the non-nitrided condition to 0.085 mg/h after nitriding. Such results showed that low temperature plasma nitriding and the formation of expanded martensite are effective to increase cavitation erosion resistance of AISI 410 stainless steel.",

keywords = "Active screen plasma nitriding, Cavitation erosion, Martensitic stainless steel",

author = "Espitia, {L. A.} and Hanshan Dong and Li, {Xiao Ying} and Pinedo, {C. E.} and Tschiptschin, {A. P.}",

year = "2014",

month = jan,

day = "1",

language = "English",

volume = "3",

pages = "1481--1487",

booktitle = "Materials Science and Technology Conference and Exhibition 2014, MS and T 2014",

publisher = "Association for Iron and Steel Technology, AISTECH",

address = "United States",

note = "Materials Science and Technology Conference and Exhibition 2014, MS and T 2014 ; Conference date: 12-10-2014 Through 16-10-2014",

}

Espitia, LA, Dong, H , Li, XY, Pinedo, CE & Tschiptschin, AP 2014, Cavitation erosion resistance of active screen-low temperature plasma nitrided AISI 410 martensitic stainless steel. in Materials Science and Technology Conference and Exhibition 2014, MS and T 2014. vol. 3, Association for Iron and Steel Technology, AISTECH, pp. 1481-1487, Materials Science and Technology Conference and Exhibition 2014, MS and T 2014, Pittsburgh, United States, 12/10/14.

Cavitation erosion resistance of active screen-low temperature plasma nitrided AISI 410 martensitic stainless steel. / Espitia, L. A.; Dong, Hanshan ; Li, Xiao Ying et al.
Materials Science and Technology Conference and Exhibition 2014, MS and T 2014. Vol. 3 Association for Iron and Steel Technology, AISTECH, 2014. p. 1481-1487.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Cavitation erosion resistance of active screen-low temperature plasma nitrided AISI 410 martensitic stainless steel

AU - Espitia, L. A.

AU - Dong, Hanshan

AU - Li, Xiao Ying

AU - Pinedo, C. E.

AU - Tschiptschin, A. P.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - AISI 410 martensitic stainless steel specimens were low temperature plasma nitrided at 400°C in a mixture of 75%N2:25%H2, during 20 h. Active screen technic was used to avoid any edge effect. The nitrided case is composed of expanded martensite (α'n) and ε-Fe3N iron nitride, whilst chromium nitride precipitation was avoided. Surface hardness reached 1275 HV0.01. The transverse microhardness profile shows a gentle hardness gradient with a NHT nitrided case depth of 28 μm. The cavitation erosion mass losses were measured as a function of exposure time. The results showed a decrease of 27 times of the mass loss compared to the non-nitride specimens. Wear rate decreased from 2.56 mg/h for the non-nitrided condition to 0.085 mg/h after nitriding. Such results showed that low temperature plasma nitriding and the formation of expanded martensite are effective to increase cavitation erosion resistance of AISI 410 stainless steel.

AB - AISI 410 martensitic stainless steel specimens were low temperature plasma nitrided at 400°C in a mixture of 75%N2:25%H2, during 20 h. Active screen technic was used to avoid any edge effect. The nitrided case is composed of expanded martensite (α'n) and ε-Fe3N iron nitride, whilst chromium nitride precipitation was avoided. Surface hardness reached 1275 HV0.01. The transverse microhardness profile shows a gentle hardness gradient with a NHT nitrided case depth of 28 μm. The cavitation erosion mass losses were measured as a function of exposure time. The results showed a decrease of 27 times of the mass loss compared to the non-nitride specimens. Wear rate decreased from 2.56 mg/h for the non-nitrided condition to 0.085 mg/h after nitriding. Such results showed that low temperature plasma nitriding and the formation of expanded martensite are effective to increase cavitation erosion resistance of AISI 410 stainless steel.

KW - Active screen plasma nitriding

KW - Cavitation erosion

KW - Martensitic stainless steel

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M3 - Conference contribution

AN - SCOPUS:84925636700

VL - 3

SP - 1481

EP - 1487

BT - Materials Science and Technology Conference and Exhibition 2014, MS and T 2014

PB - Association for Iron and Steel Technology, AISTECH

T2 - Materials Science and Technology Conference and Exhibition 2014, MS and T 2014

Y2 - 12 October 2014 through 16 October 2014

ER -

Cavitation erosion resistance of active screen-low temperature plasma nitrided AISI 410 martensitic stainless steel

Abstract

Conference

Keywords

ASJC Scopus subject areas

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