skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Resistance upset welding for vessel fabrication

Abstract

Solid-state resistance upset welding has been successfully applied to fabrication of small vessels. The process has advantages compared with the fusion welding processes currently used to join the two halves of such vessels. These advantages result from the improved metallurgical properties of the weld zone and the simplicity of the welding process. Spherical and cylindrical shapes have been fabricated using the upset welding process. Nondestructive and destructive tests have shown excellent weld strength. Storage tests have demonstrated long term compatibility of the welds for cylindrical parts made from 304L stainless steel that have been in storage for eight years. Spherical vessels and reinforced desip vessels made from forged 21-6-9 stainless steel have been prepared for storage.

Authors:
Publication Date:
Research Org.:
Westinghouse Savannah River Co., Aiken, SC (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
6965621
Report Number(s):
WSRC-MS-92-293; CONF-9209237-1
ON: DE93000389
DOE Contract Number:
AC09-89SR18035
Resource Type:
Conference
Resource Relation:
Conference: JOWOG 22D meeting, Aldermaston (United Kingdom), 29 Sep - 2 Oct 1992
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 36 MATERIALS SCIENCE; 42 ENGINEERING; REACTOR VESSELS; FABRICATION; STAINLESS STEEL-21-6-9; RESISTANCE WELDING; STAINLESS STEEL-304L; CYLINDRICAL CONFIGURATION; DESTRUCTIVE TESTING; NONDESTRUCTIVE TESTING; SPHERICAL CONFIGURATION; ALLOYS; AUSTENITIC STEELS; CHROMIUM ALLOYS; CHROMIUM-NICKEL STEELS; CONFIGURATION; CONTAINERS; CORROSION RESISTANT ALLOYS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; JOINING; LOW CA; MANGANESE ALLOYS; MATERIALS; MATERIALS TESTING; NICKEL ALLOYS; STAINLESS STEELS; STEEL-CR19NI10-L; STEEL-CR21MN9NI6; STEELS; TESTING; WELDING; 220200* - Nuclear Reactor Technology- Components & Accessories; 360101 - Metals & Alloys- Preparation & Fabrication; 420500 - Engineering- Materials Testing

Citation Formats

Kanne, W.R. Jr. Resistance upset welding for vessel fabrication. United States: N. p., 1992. Web.
Kanne, W.R. Jr. Resistance upset welding for vessel fabrication. United States.
Kanne, W.R. Jr. 1992. "Resistance upset welding for vessel fabrication". United States. doi:. https://www.osti.gov/servlets/purl/6965621.
@article{osti_6965621,
title = {Resistance upset welding for vessel fabrication},
author = {Kanne, W.R. Jr.},
abstractNote = {Solid-state resistance upset welding has been successfully applied to fabrication of small vessels. The process has advantages compared with the fusion welding processes currently used to join the two halves of such vessels. These advantages result from the improved metallurgical properties of the weld zone and the simplicity of the welding process. Spherical and cylindrical shapes have been fabricated using the upset welding process. Nondestructive and destructive tests have shown excellent weld strength. Storage tests have demonstrated long term compatibility of the welds for cylindrical parts made from 304L stainless steel that have been in storage for eight years. Spherical vessels and reinforced desip vessels made from forged 21-6-9 stainless steel have been prepared for storage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1992,
month = 1
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • Solid-state resistance upset welding has been successfully applied to fabrication of small vessels. The process has advantages compared with the fusion welding processes currently used to join the two halves of such vessels. These advantages result from the improved metallurgical properties of the weld zone and the simplicity of the welding process. Spherical and cylindrical shapes have been fabricated using the upset welding process. Nondestructive and destructive tests have shown excellent weld strength. Storage tests have demonstrated long term compatibility of the welds for cylindrical parts made from 304L stainless steel that have been in storage for eight years. Sphericalmore » vessels and reinforced desip vessels made from forged 21-6-9 stainless steel have been prepared for storage.« less
  • Solid-state resistance upset welding is suitable for joining many alloys that are difficult to weld using fusion processes. Since no melting takes place, the weld metal retains many of the characteristics of the base metal. Resulting welds have a hot worked structure, and thereby have higher strength than fusion welds in the same mate. Since the material being joined is not melted, compositional gradients are not introduced, second phase materials are minimally disrupted, and minor alloying elements, do not affect weldability. Solid-state upset welding has been adapted for fabrication of structures considered very large compared to typical resistance welding applications.more » The process has been used for closure of capsules, small vessels, and large containers. Welding emphasis has been on 304L stainless steel, the material for current applications. Other materials have, however, received enough attention to have demonstrated capability for joining alloys that are not readily weldable using fusion welding methods. A variety of other stainless steels (including A-286), superalloys (including TD nickel), refractory metals (including tungsten), and aluminum alloys (including 2024) have been successfully upset welded.« less
  • In an effort to better characterize and classify austenitic stainless steel resistance upset welds, standard methods have been examined and alternative methods investigated. Optical microscopy yields subjective classification due to deformation obscured bond lines and individual perception. The use of specimen preparations that better reveal grain boundaries aids in substantiating optical information. Electron microscopy techniques produce quantitative information in relation to microstructural constituents. Orientation Imaging Microscopy (OIM) is a relatively new technique for obtaining objective, quantitative information pertaining to weld integrity, i.e., percent grain boundary growth across the interface.
  • An electron beam welding procedure is being developed for welding 8 in. thick SA 387 Grade 22 Class 2 (2/sup 1///sub 4/ Cr--1 Mo) steel. Work is in progress for developing 4/sup 1///sub 2/ inch deep partial penetration electron beam welding procedures. A total of 95 welds has been made to date in the horizontal position. A welding procedure which produces a defect-free weld has not been developed to date.