Exhaust Valve Spindles for Marine Diesel Engines Manufactured by Hot Isostatic Pressing

Alberto Lapina; Harro Andreas Hoeg; Jakob Knudsen; Tomas Berglund; Rune Møller; Jesper Henri Hattel

doi:10.21741/9781644900031-14

Exhaust Valve Spindles for Marine Diesel Engines Manufactured by Hot Isostatic Pressing

Alberto Lapina^*, Harro Andreas Hoeg, Jakob Knudsen, Tomas Berglund, Rune Møller, Jesper Henri Hattel

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

654 Downloads (Pure)

Abstract

The exhaust valve spindle is one of the most challenging components in the marine two-stroke diesel engine. It has to withstand high mechanical loads, thermal cycling, surface temperatures beyond 700 degrees C, and molten salt induced corrosion. Powder metallurgy gives the opportunity of improving the component using materials not applicable by welding or forging. Therefore exhaust valve spindles have been produced by Hot Isostatic Pressing (HIP) with a spindle disc coating of a Ni-Cr-Nb alloy that cannot be manufactured by welding or forging. This paper presents the service experience gathered by MAN Diesel & Turbo in a number of service tests on ships (up to 18000 running hours): corrosion and degradation phenomena in the spindles produced by HIP are presented and compared with the performance of state-of-the-art exhaust valve spindles. The macroscopic geometrical changes experienced by the spindles are studied by means of Finite Element Method (FEM) calculations and strategies for further development of the component are outlined.

Original language	English
Title of host publication	Materials Research Proceedings
Editors	Pranesh Dayal, Gerry Triani
Volume	10
Publisher	Materials Research Forum LLC
Publication date	2019
Pages	98-106
ISBN (Print)	978-1-64490-002-4
ISBN (Electronic)	978-1-64490-003-1
DOIs	https://doi.org/10.21741/9781644900031-14
Publication status	Published - 2019
Event	12th international conference on hot isostatic pressing (HIP' 17) - Sydney, Australia Duration: 5 Dec 2017 → 8 Dec 2017

Conference

Conference	12th international conference on hot isostatic pressing (HIP' 17)
Country/Territory	Australia
City	Sydney
Period	05/12/2017 → 08/12/2017

Series	Materials Research Proceedings
Volume	10
ISSN	2474-395X

Bibliographical note

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under license by Materials Research Forum LLC.

Keywords

Hot Isostatic Pressing
Diesel Engine
Hot Corrosion
Nickel Alloys
Thermal Cycling
Science & Technology
Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.21741/9781644900031-14

14Final published version, 720 KB

OpenUrl availability

Full text

Cite this

@inproceedings{7d23f6436f9b4d5c85adc8ac2cecc387,

title = "Exhaust Valve Spindles for Marine Diesel Engines Manufactured by Hot Isostatic Pressing",

abstract = " The exhaust valve spindle is one of the most challenging components in the marine two-stroke diesel engine. It has to withstand high mechanical loads, thermal cycling, surface temperatures beyond 700 degrees C, and molten salt induced corrosion. Powder metallurgy gives the opportunity of improving the component using materials not applicable by welding or forging. Therefore exhaust valve spindles have been produced by Hot Isostatic Pressing (HIP) with a spindle disc coating of a Ni-Cr-Nb alloy that cannot be manufactured by welding or forging. This paper presents the service experience gathered by MAN Diesel & Turbo in a number of service tests on ships (up to 18000 running hours): corrosion and degradation phenomena in the spindles produced by HIP are presented and compared with the performance of state-of-the-art exhaust valve spindles. The macroscopic geometrical changes experienced by the spindles are studied by means of Finite Element Method (FEM) calculations and strategies for further development of the component are outlined.",

keywords = "Hot Isostatic Pressing, Diesel Engine, Hot Corrosion, Nickel Alloys, Thermal Cycling, Science & Technology, Technology",

author = "Alberto Lapina and Hoeg, {Harro Andreas} and Jakob Knudsen and Tomas Berglund and Rune M{\o}ller and Hattel, {Jesper Henri}",

note = "Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under license by Materials Research Forum LLC. ; 12th international conference on hot isostatic pressing (HIP' 17) ; Conference date: 05-12-2017 Through 08-12-2017",

year = "2019",

doi = "10.21741/9781644900031-14",

language = "English",

isbn = "978-1-64490-002-4",

volume = "10",

series = "Materials Research Proceedings",

publisher = "Materials Research Forum LLC",

pages = "98--106",

editor = "Dayal, {Pranesh } and Triani, {Gerry }",

booktitle = "Materials Research Proceedings",

}

Lapina, A, Hoeg, HA, Knudsen, J, Berglund, T, Møller, R & Hattel, JH 2019, Exhaust Valve Spindles for Marine Diesel Engines Manufactured by Hot Isostatic Pressing. in P Dayal & G Triani (eds), Materials Research Proceedings. vol. 10, Materials Research Forum LLC, Materials Research Proceedings, vol. 10, pp. 98-106, 12th international conference on hot isostatic pressing (HIP' 17), Sydney, Australia, 05/12/2017. https://doi.org/10.21741/9781644900031-14

Exhaust Valve Spindles for Marine Diesel Engines Manufactured by Hot Isostatic Pressing. / Lapina, Alberto; Hoeg, Harro Andreas; Knudsen, Jakob et al.
Materials Research Proceedings. ed. / Pranesh Dayal; Gerry Triani. Vol. 10 Materials Research Forum LLC, 2019. p. 98-106 (Materials Research Proceedings, Vol. 10).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Exhaust Valve Spindles for Marine Diesel Engines Manufactured by Hot Isostatic Pressing

AU - Lapina, Alberto

AU - Hoeg, Harro Andreas

AU - Knudsen, Jakob

AU - Berglund, Tomas

AU - Møller, Rune

AU - Hattel, Jesper Henri

N1 - Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under license by Materials Research Forum LLC.

PY - 2019

Y1 - 2019

N2 - The exhaust valve spindle is one of the most challenging components in the marine two-stroke diesel engine. It has to withstand high mechanical loads, thermal cycling, surface temperatures beyond 700 degrees C, and molten salt induced corrosion. Powder metallurgy gives the opportunity of improving the component using materials not applicable by welding or forging. Therefore exhaust valve spindles have been produced by Hot Isostatic Pressing (HIP) with a spindle disc coating of a Ni-Cr-Nb alloy that cannot be manufactured by welding or forging. This paper presents the service experience gathered by MAN Diesel & Turbo in a number of service tests on ships (up to 18000 running hours): corrosion and degradation phenomena in the spindles produced by HIP are presented and compared with the performance of state-of-the-art exhaust valve spindles. The macroscopic geometrical changes experienced by the spindles are studied by means of Finite Element Method (FEM) calculations and strategies for further development of the component are outlined.

AB - The exhaust valve spindle is one of the most challenging components in the marine two-stroke diesel engine. It has to withstand high mechanical loads, thermal cycling, surface temperatures beyond 700 degrees C, and molten salt induced corrosion. Powder metallurgy gives the opportunity of improving the component using materials not applicable by welding or forging. Therefore exhaust valve spindles have been produced by Hot Isostatic Pressing (HIP) with a spindle disc coating of a Ni-Cr-Nb alloy that cannot be manufactured by welding or forging. This paper presents the service experience gathered by MAN Diesel & Turbo in a number of service tests on ships (up to 18000 running hours): corrosion and degradation phenomena in the spindles produced by HIP are presented and compared with the performance of state-of-the-art exhaust valve spindles. The macroscopic geometrical changes experienced by the spindles are studied by means of Finite Element Method (FEM) calculations and strategies for further development of the component are outlined.

KW - Hot Isostatic Pressing

KW - Diesel Engine

KW - Hot Corrosion

KW - Nickel Alloys

KW - Thermal Cycling

KW - Science & Technology

KW - Technology

U2 - 10.21741/9781644900031-14

DO - 10.21741/9781644900031-14

M3 - Article in proceedings

SN - 978-1-64490-002-4

VL - 10

T3 - Materials Research Proceedings

SP - 98

EP - 106

BT - Materials Research Proceedings

A2 - Dayal, Pranesh

A2 - Triani, Gerry

PB - Materials Research Forum LLC

T2 - 12th international conference on hot isostatic pressing (HIP' 17)

Y2 - 5 December 2017 through 8 December 2017

ER -

Exhaust Valve Spindles for Marine Diesel Engines Manufactured by Hot Isostatic Pressing

Abstract

Conference

Bibliographical note

Keywords

UN SDGs

Access to Document

OpenUrl availability

Fingerprint

Cite this