Full Content is available to subscribers

Subscribe/Learn More  >

Effect of Surface-Machining and Butt-Welding on Residual Stress and Hardness of Type 316L Stainless Steel Pipes

[+] Author Affiliations
Wataru Asano, Masahito Mochizuki, Masao Toyoda

Osaka University, Suita, Osaka, Japan

Jinya Katsuyama, Kunio Onizawa

Japan Atomic Energy Agency, Tokai, Ibaraki, Japan

Paper No. PVP2008-61441, pp. 451-458; 8 pages
  • ASME 2008 Pressure Vessels and Piping Conference
  • Volume 6: Materials and Fabrication, Parts A and B
  • Chicago, Illinois, USA, July 27–31, 2008
  • Conference Sponsors: Pressure Vessels and Piping
  • ISBN: 978-0-7918-4829-6
  • Copyright © 2008 by ASME


Stress corrosion cracking (SCC) near the welded zone of core internals and recirculation pipes of Type 316L stainless steel have been observed to initiate at inner surface due to tensile residual stress and hardening. Residual stress and hardening should be induced by not only welding but also surface-machining in these regions. Surface-machining is conducted before and after piping butt-welding to match the ID of pipes and to provide a smooth surface finish. Therefore, we experimentally evaluated Vickers hardness distribution and proposed a simulation method to estimate residual stress by surface-machining using a local micron scale finite element method (FEM) model in previous paper (PVP2006) [1]. In present work, residual stress and Vickers hardness distributions for thickness direction were evaluated by experimental measurement. Residual stress simulation by surface-machining and welding was carried out by proposed simulation method applied to simulate the butt-welding of full scale FEM model for weld specimen. Redistribution behavior of residual stress by welding after surface-machining was discussed based on experimental and analytical results. Estimation of Vickers hardness distribution by surface-machining was performed based on strained region map observed by Field emission scanning electron microscope (FE-SEM) equipped with electron backscatter diffraction (EBSD) and compared with experimental measurements. The effect of surface-machining before/after welding on distribution of residual stress and hardness are presented.

Copyright © 2008 by ASME



Interactive Graphics


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

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