Residual stress profiling in the ferrite and cementite phases of cold-drawn steel rods by synchrotron X-ray and neutron diffraction

Journal Article · Mon Oct 18 04:00:00 EDT 2004 · Acta Materialia

DOI:https://doi.org/10.1016/j.actamat.2004.07.036· OSTI ID:20634792

Martinez-Perez, M L ^[1]; Mompean, F J ^[1]; Ruiz-Hervias, J ^[2]; Borlado, C R ^[1]; Atienza, J M ^[2]; Garcia-Hernandez, M ^[1]; Elices, M ^[2]; Gil-Sevillano, J ^[3]; Rulin, Peng ^[4]; Buslaps, T ^[5]

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1. ICMM, CSIC, Campus de Cantoblanco, E-28049 Madrid (Spain)
2. Departamento de Ciencia de Materiales, UPM, E.T.S.I. Caminos, Canales y Puertos, c/ Profesor Aranguren s/n, E-28040 Madrid (Spain)
3. CEIT, Paseo de Manuel Lardizabal 15, E-20018 San Sebastian (Spain)
4. NFL Studsvik, Uppsala University, S-61182 Nykoeping (Sweden)
5. ESRF, BP 220, F-38043 Grenoble Cedex (France)

Residual stress profiles have been measured in the ferrite and cementite phases of a cold-drawn eutectoid steel rod by neutron and synchrotron X-ray diffraction in three orientations (axial, radial and hoop). Neutron diffraction was employed to measure the ferrite stresses, whereas synchrotron radiation was used for ferrite and cementite stresses. Experimental results in the ferrite phase showed excellent agreement between both experimental techniques when gauge volume effects were accounted for. Axial cementite stresses were always tensile, with a maximum value close to 1700 MPa at the rod surface. Radial and hoop cementite stresses were compressive along the diameter of the rod, with a minimum of -1900 MPa at the rod center. A 3D-finite element simulation of the macro residual stresses resulting from cold-drawing showed remarkable agreement with those determined from the experimental measurements in the ferrite and cementite phases.

• OSTI ID: 20634792
• Journal Information: Acta Materialia, Journal Name: Acta Materialia Journal Issue: 18 Vol. 52; ISSN 1359-6454; ISSN ACMAFD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CEMENTITE
EUTECTICS
FERRITE
FINITE ELEMENT METHOD
NEUTRON DIFFRACTION
RESIDUAL STRESSES
SIMULATION
STEELS
SYNCHROTRON RADIATION
X-RAY DIFFRACTION