Quantitative Mineral Characterization of Granitic Pegmatite Using Topas Rietveld XRD Refinement

Hestnes, K.H.; Sørensen, Bjørn Eske

doi:10.1007/978-3-642-27682-8_40

Cited by 3 publications

(2 citation statements)

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“…Qualitatively, it has been previously noted that high-intensity peaks indicate higher IMC quantity [2]. Table 10 shows the results of quantifying the IMC volume fractions in the weld nugget considering the Topas Rietveld refinement method [27] on the XRD patterns of test nos. 2 and 3.…”

Section: Intermetallic Phases At the Weld Nugget Zonementioning

confidence: 99%

Prediction and validation of intermetallic compound formation during friction stir welding of AA6061 to commercially pure copper

Karrar

Galloway

Toumpis

et al. 2022

Science and Technology of Welding and Joining

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A novel approach for predicting the intermetallic compound formation during friction stir welding of AA6061 to commercially pure copper has been developed, in addition to their effect on mechanical properties. The temperature distribution of the aluminium to copper weld nugget determined by a finite element model, the use of an Al-Cu phase diagram and the elemental concentration of copper and aluminium in the weld nugget have been combined to predict and validate several intermetallic compounds present in the different zones of the weldment. The results of performing butt-welding of these dissimilar metals using the friction stir welding process demonstrated that the highest ultimate tensile strength of 194.5 MPa was achieved at 1500 rpm tool rotational speed, 100 mm/min traverse speed and a zero-tool offset.

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Section: Intermetallic Phases At the Weld Nugget Zonementioning

confidence: 99%

Prediction and validation of intermetallic compound formation during friction stir welding of AA6061 to commercially pure copper

Karrar

Galloway

Toumpis

et al. 2022

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

show abstract

“…The main minerals in this pegmatite are quartz, Na-rich feldspar and K-rich feldspar, while the minor minerals are mica and garnet. The method only quantifies the main minerals at this stage; though further mineral phases are included in Hestnes and Sørensen (2011). In this project the developed quantitative Rietveld XRD method has been compared to semi-quantitative XRD, semi-quantitative X-ray fluorescence (XRF) and diffraction (XRD) in combination, and an element to mineral conversion using chemical results from XRF and Electron Probe Micro-Analyzer (EPMA).…”

Section: Introductionmentioning

confidence: 99%