On the Ductile Behavior of Nominally Brittle Materials During Erosive Cutting

Sheldon, G. L.; Finnie, I.

doi:10.1115/1.3672666

Cited by 150 publications

(53 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Figure 17, the erosion versus impact angle behaviour follows the trends observed in previous work [15,16] in that the peak wear occurs at 30°. Figure 18 shows how erosion rate progresses with increasing impact velocity for the three impact angles tested.…”

Section: Erosion Ratessupporting

confidence: 65%

“…For the flat specimens different angles could be used. Angle of impact is very important in determining erosive wear behaviour [15,16]. Previous work has shown, for ductile materials, that wear rates and features change as the counterface specimen is moved from being perpendicular to the erodent flow (where impact craters form with lips which are subsequently removed leading to material removal) to an acute angle to the flow (where wear behaviour becomes almost exclusively about cutting) (see Figure 4 (from [15])).…”

Section: Die Specimensmentioning

confidence: 99%

“…Peak wear is seen at around an angle of 30°. It should be noted that different trends occur for brittle materials where wear mechanisms vary and the peak wear occurs at 90° [16]. The cylindrical specimens could be set-up to be in alignment or offset from the centre of the nozzle.…”

Section: Die Specimensmentioning

confidence: 99%

See 2 more Smart Citations

Development of a method for assessing erosive wear damage on dies used in aluminium casting

Mohammed

Marshall

Lewis

2015

Wear

View full text Add to dashboard Cite

Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/) eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. Very few test methods exist to study the damage mechanisms and for trialling new materials/coatings. Most studies have involved either casting actual components or placing material specimens in a die casting machine so that they are impacted by the aluminium. This is very time consuming and expensive.In this work a laboratory test was developed specifically to study the erosion effects of the aluminium particles. A mounting frame was utilised to hold both flat and cylindrical specimens made from H13 steel (typically used for die manufacture). The frame was placed in a shot blaster which was used to fire aluminium balls (3mm diameter -based on aluminium droplet size calculations) at the specimens. Different velocities were used and the flow was pulsed to mimic successive castings being made.Flat specimens were tested at different angles and cylindrical specimens were tested central to the flow of aluminium and in an eccentric position to cover a range of possible aluminium/die impact scenarios. Optical microscopy and roughness measurements were used to characterise the wear on the specimens. Wear rates were also determined. Behaviour was compared with data from the literature where available. Wear damage was also compared with worn dies. High speed videoing was also used to study the impact behaviour of the aluminium balls.It was concluded that the test method was a suitable approach to use in identifying potential solutions that could extend die life. In future work the effects of temperature and application of coatings will be explored.

show abstract

Section: Erosion Ratessupporting

confidence: 65%

Section: Die Specimensmentioning

confidence: 99%

See 1 more Smart Citation

Development of a method for assessing erosive wear damage on dies used in aluminium casting

Mohammed

Marshall

Lewis

2015

Wear

View full text Add to dashboard Cite

show abstract

“…Such erosion behavior is typical of ductile materials [46]. For AISI 1018 steel, only a thin oxide scale developed at this low surface temperature (300 C), thus allowing the impacting bed ash particles to penetrate the thin oxide scale and plastically to deform the ductile base metal beneath it [42].…”

Section: (V) Effects Of Impact Angle On Erosion Wastagementioning

confidence: 99%

Analysis/control of in-bed tube erosion phenomena in the fluidized bed combustion system. Final technical report

Lee¹

1996

View full text Add to dashboard Cite

“…The maximum velocities of particles leaving the 10-foot-long acceleration nozzle were computed using aerodynamic formulas. Target erosion losses were measured and compared in terms of total target weight loss (mgs), corresponding target volume loss (cm 3 .…”

Section: Erosion Test Facility and Test Proceduresmentioning

confidence: 99%