Publication

Article Metrics

Citations


Online attention

Residual stresses distribution, correlated with bending tests, within explosively welded Ti gr. 2/A1050 bimetals

DOI: 10.1016/j.matchar.2018.08.004 DOI Help

Authors: D. M. Fronczek (Institute of Metallurgy and Materials Science, Polish Academy of Sciences) , K. Saksl (Institute of Materials Research, Slovak Academy of Sciences; Univerzita Pavla Jozefa Šafárika v Košiciach) , R. Chulist (Institute of Metallurgy and Materials Science, Polish Academy of Sciences) , S. Michalik (Diamond Light Source) , J. Wojewoda-budka (Institute of Metallurgy and Materials Science, Polish Academy of Sciences) , L. Sniezek (Military University of Technology) , M. Wachowski (Military University of Technology) , J. Torzewski (Military University of Technology) , M. Sulikova (Univerzita Pavla Jozefa Šafárika v Košiciach) , K. Sulova (Institute of Materials Research, Slovak Academy of Sciences) , A. Lachova (Univerzita Pavla Jozefa Šafárika v Košiciach) , M. Fejercak (Institute of Materials Research, Slovak Academy of Sciences; Univerzita Pavla Jozefa Šafárika v Košiciach) , D. Daisenberger (Diamond Light Source) , Z. Szulc (High Energy Technologies Works ‘Explomet’) , Z. Kania (Institute of Metallurgy and Materials Science, Polish Academy of Sciences)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Materials Characterization , VOL 144 , PAGES 461 - 468

State: Published (Approved)
Published: October 2018
Diamond Proposal Number(s): 18639

Abstract: Synchrotron radiation and XRD2 method were used to investigate the residual stress distribution before and after three point bending tests within an explosively welded composite composed of two light metals, namely: Ti gr. 2 and A1050. The analysis has shown that the bimetal is slightly affected by the explosive welding process since negative sign values of stress tensor were detected only in the immediate vicinity of interface of Ti gr. 2 characterized by a width of about 0.25 mm. Upon bending higher negative compression stresses are detected in this area as the σ11 value changes from −500 MPa to −1200 MPa. Additionally, the analysis of microstructure has revealed significant changes in twins morphology with primary and conjugate twinning before and after bending, respectively. However, the compressive twinning was the dominant system in both cases. Bending has changed the initial bimodal texture developing more spread basal components towards the transverse direction. The sample surface has been also significantly affected as the presence of compressive residual stress (−500 MPa) after bending was measured.

Journal Keywords: Explosive welding; Aluminum; Titanium; Bending; SEM/EBSD; Residual stress

Subject Areas: Materials, Physics


Instruments: I15-Extreme Conditions