Low Angle Scouring Erosion Behaviour of Materials for Processing and Transportation of Oil Sands Slurries
Bibliographic record
Abstract
Abstract The capability to withstand high velocity, low angle impingement by hard, fine solids is one of the critical requirements for materials used in slurry handling equipment commonly employed in oil sands operations. The Coriolis rig has been shown to provide a convenient and reproducible technique for scouring erosion evaluation. Data obtained have correlated well with service performance. The system has been steadily gaining acceptance as a suitable method for assessing materials for such service, particularly for hard iron alloys for slurry pump impeller and casing applications. To expand the fairly limited amount of available knowledge on the comparative behaviour and degradation mechanisms occurring under such conditions, Coriolis erosion evaluation has been carried out on a range of materials of different wear protection classes. These represent many products being used currently and include carbon, low alloy and stainless steels, chrome white irons, cobalt-based alloys, cermets and ceramics. Results are used to provide a discriminatory assessment of materials and demonstrated the vastly superior performance of a tungsten-carbide cermet. SEM examination of its wear scar revealed minimal material removal, primarily due to the protection afforded to the relatively soft matrix by the dense distribution of hard carbides. Understandably less resistant and cheaper materials, such as carbon steels, exhibited more extensive wastage by a combination of micro-ploughing and cutting.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".