On the Suitability of ASTM 532 IIB Cr White Cast Irons for Erosion-Corrosion and Abrasion-Corrosion Applications
Bibliographic record
Abstract
Abstract In this paper, two commercial Cr white cast irons, conforming to ASTM 532 IIB (15CrMo) and ASTM 532 IIIA (27Cr) respectively, have been studied under slurry jet erosion, Coriolis scouring erosion, slurry sliding abrasion and slurry pot erosion-corrosion conditions. The results show that 15CrMo performs considerably better than the 27Cr counterpart under most of the test conditions but is only slightly better in the erosion-corrosion test. Based on analyses of various components of tribo-corrosion synergy and the testing results, it is suggested that it may be beneficial to more broadly use the 15CrMo white cast irons to replace the ASTM 532 IIIA higher Cr alloy in erosion-corrosion/abrasion-corrosion applications where the intensity of damage due to mechanical effect (pure erosion/abrasion) is severe such as in the handling of thick slurries.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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) | 0.001 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".