The wear behaviour of different metallic bond alloys tested in a modified B611-13 test in an acidic, neutral and alkaline media
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Date
2023-04-15
Publication Type
Journal Article
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yes
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Abstract
The abrasive and adhesive wear behaviour of metallic bonds can be significantly affected by varying pH values of the attacking medium. However, the knowledge about the pH value influence on diamond impregnated bits used in core drilling industry is still limited. One recent publication shows the advantage of modifying a standard ASTM B611-13 test to investigate the abrasive and adhesive wear behaviour of a diamond segment bond material in a neutral regime (pH7). This study mainly focuses on the effects of a varying surrounding media on the tribological behaviour using an acidic, neutral and alkaline slurry. This emulates more aggressive conditions for the diamond segments used in mining as well as construction industry. The pH value at which such diamond segments operate can differ from pH2 up to a value of pH13. The present work studies the wear behaviour of two metallic bonds in a modified B611-13 arrangement at 4 m/s sliding speed and different pH values. The tested specimens are investigated with regard to their change in mass and microstructure at the sliding interface zone. The results reveal a significant influence of the pH value on the wear behaviour of the bond system.
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published
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Book title
Journal / series
Volume
518-519
Pages / Article No.
204651
Publisher
Elsevier
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Edition / version
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Date collected
Date created
Subject
Wear test; B611-13 test; pH; Coefficient of friction; Core drilling
Organisational unit
02623 - Inst. f. Werkzeugmaschinen und Fertigung / Inst. Machine Tools and Manufacturing