Residual stress characterization of thick-plate weldments using x-ray diffraction

Journal Article · Mon Mar 01 04:00:00 EST 1993 · Welding Journal (Miami); (United States)

OSTI ID:6544020

Ruud, C O ^[1]; Josef, J A ^[2]; Snoha, D J ^[3]

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1. Pennsylvania State Univ., University Park (United States)
2. Los Alamos National Lab., NM (United States)
3. Army Materials Technology Lab., Watertown, MA (United States)

The objective of this investigation was to measure the residual stress field in a thick multipass weldment using x-ray diffraction (XRD) techniques. The sample under study was a 13-in. (33-cm) thick, multipass, V-groove butt joint weldment of 2 1/4-Cr 1-Mo steel plate. Nearly 10,000 stress measurements were performed on the weldment, producing over 72 plots of stress traverses, to provide the most thorough experimental analysis of a weldment to date. The data indicate the complexity of the stress field in thick multipass weldments and the magnitude of the difficulties to be faced in developing numerical models for residuals stresses in these weldments. This paper is restricted to reporting and discussing the welding-induced stress patterns on the rolled plate surface. It is these surfaces that are normally exposed for crack initiation.

• OSTI ID: 6544020
• Journal Information: Welding Journal (Miami); (United States), Journal Name: Welding Journal (Miami); (United States) Vol. 72:3; ISSN 0043-2296; ISSN WEJUA3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
CHROMIUM-MOLYBDENUM STEELS
COHERENT SCATTERING
DIFFRACTION
JOINTS
MECHANICAL PROPERTIES
PLATES
RESIDUAL STRESSES
SCATTERING
STRESSES
TENSILE PROPERTIES
WELDED JOINTS
X-RAY DIFFRACTION
YIELD STRENGTH