期刊
POWDER TECHNOLOGY
卷 426, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.powtec.2023.118637
关键词
Mechanical milling; Wet pre-milling; Machining chips; Titanium; Ball to powder weight ratio
Cp-Ti particles were fabricated from titanium turning chips by wet-pre milling assisted mechanical milling, with different ball to powder ratios and milling times. The smallest particle size was achieved with a ball to powder weight ratio of 15:1, which was approximately 15 times smaller than powders produced with a ratio of 5:1. XRD analysis showed the presence of TiO2 (Anatase and Rutile) peaks in the structure of Cp-Ti particles fabricated after 4 hours of milling with a ball-to-powder ratio of 15:1. However, oxidation was not observed in the results of XRD analysis for milling with low ball to powder ratios (5:1 and 10:1). The lowest apparent density and hardness were measured at 2.45 g/cm3 and 126 HV, respectively, for powders milled for 0.5 hours. The highest apparent density and hardness were measured at 3.45 g/cm3 and 325 HV, respectively, for powders milled for 7 hours.
In this study, Cp-Ti particles were fabricated from titanium turning chips by wet-pre milling assisted mechanical milling with different ball to powder ratio and milling time. The minimum particle size fabricated with a ball to powder weight ratio of 15:1 is approximately 15 times smaller than powders produced with 5:1. TiO2 (Anatase and Rutile) peaks were found in the structure of Cp-Ti particles fabricated after 4 h of milling at a ball-to-powder ratio of 15:1. However after the milling with low ball to powder ratios (5:1 and 10:1) the oxidation was not observed in results of XRD analysis. The lowest apparent density and hardness was measured as 2.45 g/cm3 and 126 HV for 0.5 h milled powders, respectively. The maximum apparent density and hardness was measured as 3.45 g/cm3 and 325 HV for 7 h milled powders, respectively.
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