0

Full Content is available to subscribers

Subscribe/Learn More  >

Avoiding Failure in a Hot Isostatic Press

[+] Author Affiliations
Dan G. Taylor

Hydro-Pac, Inc., Fairview, PA

Larry Haimowitz

Unaxis USA, Morgan Hill, CA

Paper No. PVP2002-1517, pp. 63-69; 7 pages
doi:10.1115/PVP2002-1517
From:
  • ASME 2002 Pressure Vessels and Piping Conference
  • Piping and Component Analysis and Diagnosis
  • Vancouver, BC, Canada, August 5–9, 2002
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4658-X
  • Copyright © 2002 by ASME

abstract

A Hot Isostatic Press (HIP) is a thick walled vessel subject to cyclic stress from internal pressure and temperature profiles. It contains a furnace that heats a work piece to as much as 2900° F (1590° C). These furnaces are designed with a thermal barrier that keeps the inside wall of the vessel below 400° F (204° C). A break down of this thermal barrier can allow jets of hot gas to impinge on the vessel wall and allow hot gas to accumulate at the top of the vessel. Sudden heating of the wall will cause large, localized, compressive stresses and can result in yielding and cracking. The excessive local temperature can also cause a reduction in material properties. Any of these problems can lead to the failure of the vessel. This paper traces a case history of a vessel with these kinds of damage. The problem was first identified by normal, non-destructive, inservice inspection. Further inspection and testing was required to identify the extent of the problem and to verify complete removal of the affected metal. This included insitu metallography of the vessel surface, hardness testing and tensile testing of trepanned specimens. The final vessel configuration was analyzed at a reduced pressure for compliance to Section VIII, Division 2. It was then hydrotested and placed back into service, avoiding catastrophic failure.

Copyright © 2002 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In