Zobrazeno 1 - 10
of 186
pro vyhledávání: '"J Altenkirch"'
Publikováno v:
Metallurgical and Materials Transactions A. 43:2342-2355
A systematic set of single-pass full penetration friction stir bead-on-plate and butt-welds in HSLA-65 steel were produced using a range of different traverse speeds (50 to 500 mm/min) and two tool materials (W-Re and PCBN). Microstructural analysis
Autor:
Th. Kannengiesser, V Kostov, J Altenkirch, Jens Gibmeier, Alexander Wanner, Arne Kromm, Stephen Doyle
Publikováno v:
The Journal of Strain Analysis for Engineering Design. 46:563-579
Solid-state phase transformations and the evolution of thermal and elastic strains in novel low temperature transformation (LTT) weld filler materials in the near surface region are monitored in real time by means of an innovative experimental set-up
Publikováno v:
The Journal of Strain Analysis for Engineering Design. 46:651-662
Many alloys undergo complex changes in local chemistry in the vicinity of weldments due to the thermal excursion during welding. The resulting changes in solute concentrations can lead to significant local variations in the unstrained unit cell param
Publikováno v:
Metallurgical and Materials Transactions A. 43:2356-2365
A set of single pass full penetration friction stir bead-on-plate and butt welds in HSLA-65 steel were produced using a range of traverse speeds (50 to 500 mm/min) and two tool materials (W-Re and PCBN). Part I described the influence of process and
Publikováno v:
Powder Diffraction. 24:S31-S36
Weld residual stress (RS) measurements are often undertaken on test-pieces which have been Cut Out from large components, yet it remains unclear to what extent the RSs in test-pieces are representative of those present in the original component. Simi
Publikováno v:
Science and Technology of Welding and Joining. 14:185-192
The authors investigate the efficacy of applying rolling pressure along the weld line in thin butt welds produced using friction stir welding (FSW) as a means of controlling the welding residual stresses. Two cases are examined and in each case, comp
Autor:
Zironi, Isabella1,2 (AUTHOR) isabella.zironi@unibo.it, Cramer, Tobias1 (AUTHOR), Fuschi, Alessandro1 (AUTHOR), Cioni, Margherita1 (AUTHOR) margherita.cioni3@unibo.it, Guerra, Giada3 (AUTHOR), Giuliani, Giacomo1 (AUTHOR), Calienni, Maria4 (AUTHOR), Caramazza, Laura5 (AUTHOR), Liberti, Micaela5 (AUTHOR), Apollonio, Francesca5 (AUTHOR), Remondini, Daniel1,2 (AUTHOR), Castellani, Gastone6,7 (AUTHOR)
Publikováno v:
Scientific Reports. 11/15/2024, Vol. 14 Issue 1, p1-18. 18p.
Publikováno v:
Metallurgical and Materials Transactions A. 39:3246-3259
The extent to which in-situ global mechanical tensioning (GMT) can be used to modify the residual stress state in friction stir (FS) welds is investigated in this article. Residual stress distributions have been determined by synchrotron X-ray and ne
The effect of tensioning and sectioning on residual stresses in aluminium AA7749 friction stir welds
Publikováno v:
Materials Science and Engineering: A. 488:16-24
Using synchrotron X-ray diffraction the residual stress distribution has been measured in a series of AA7449-W51 aluminium friction stir welds that had been tensioned to different loads during welding. By modifying the stress accumulation path, the a
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 584:428-435
In this paper we report on a new robotic arm system for fast, accurate and flexible sample manipulation for stress and texture analysis in geometrically complex engineering components on neutron and synchrotron X-ray diffractometers. A Staeubli seria