The Challenge of Effectively Utilizing Trace Elements/Impurities in a Varying Raw Materials Market

Jha, Gyan; Ningileri, Shridas; Li, Xiaoxuan; Bowers, Randall

doi:10.1002/9781118663189.ch158

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Changes In Petroleum Coke Quality: Current and Future Challe1

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2014

2016

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Cited by 3 publications

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“…For some alloys, higher V levels may even be advantageous. 25,26 The situation with CPC S increases is similar to V, but less dramatic. Most smelters have a hard limit on SO 2 emissions, which typically sets an upper limit on the CPC S specification unless the smelter has the ability to scrub SO 2 from the baking furnace and potrooms.…”

Section: Changes In Petroleum Coke Quality: Current and Future Challementioning

confidence: 87%

The History and Future Challenges of Calcined Petroleum Coke Production and Use in Aluminum Smelting

Edwards

2014

JOM

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Section: Changes In Petroleum Coke Quality: Current and Future Challementioning

confidence: 87%

The History and Future Challenges of Calcined Petroleum Coke Production and Use in Aluminum Smelting

Edwards

2014

JOM

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The Effect of Trace Levels of Ni and V on the Microstructure and Properties of Four Common Aluminum Alloys

Grandfield¹,

Sweet²,

Beer³

et al. 2014

Light Metals 2014

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The Influence of Ni and V Trace Elements on High-Temperature Tensile Properties and Aging of A356 Aluminum Foundry Alloy

Giovanni

Cerri

Casari

et al. 2016

Metall Mater Trans A

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High-temperature tensile properties of unmodified A356 alloy with and without the addition of Ni or V in traces (600 and 1000 ppm of Ni and V, respectively) were investigated by analyzing samples obtained from sand and permanent mold castings in the as-cast and T6 heat-treated conditions. Tensile tests were performed at 508 K (235°C) at a crosshead speed of 1 mm/min. In addition, samples were subjected to artificial aging at 508 K (235°C) for different times, and corresponding hardness curves were plotted. Microstructures and fracture surfaces, analyzed by FEG-SEM equipped with energy dispersive X-ray spectroscopy, showed that neither Ni nor V addition had a detrimental effect on high-temperature tensile properties. Aging curves showed a strong loss of hardness affecting the T6 class between 30-min and 1-h exposure time. After 6-h aging, no evidence of aging treatment persisted on hardness of the tested material. Hardness values did not reveal any significant difference between the reference alloy and the Ni-and V-containing alloys in both casting conditions, in complete analogy with the tensile properties. Unmodified eutectic silicon particles provided inhomogeneity in the a-Al matrix and acted as the principal source of stress concentration leading to fracture.

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The Challenge of Effectively Utilizing Trace Elements/Impurities in a Varying Raw Materials Market

Cited by 3 publications

References 2 publications

The History and Future Challenges of Calcined Petroleum Coke Production and Use in Aluminum Smelting

The History and Future Challenges of Calcined Petroleum Coke Production and Use in Aluminum Smelting

The Effect of Trace Levels of Ni and V on the Microstructure and Properties of Four Common Aluminum Alloys

The Influence of Ni and V Trace Elements on High-Temperature Tensile Properties and Aging of A356 Aluminum Foundry Alloy

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