Effect of Cooling Rate and Pouring Temperature on the Hardness and Wear Resistance of Bronze SAE660

• Autorzy: Karimifer S. , Vahdat S. E.

Identyfikatory

DOI

10.24425/123617

• Języki publikacji: EN

Abstrakty

EN

Metallic bearing alloys have different types, most of which are tin (Babbitt) or bronze based. Bronze bearings are used at heavy duty conditions. The goal of this research is an investigation on the effect of cooling rate and pouring temperature (two important factors in casting production) on the Brinell hardness and pin-on-disc wear resistance (two important properties in bearing applications) of bronze SAE660. The melt had prepared by induction furnace. Then, it had poured in sand mold in four different casting conditions, including pouring temperatures of 950 ºC and 1200 ºC, and cooling with water and air. Finally, the microstructure, hardness and wear resistance of the SAE660 had investigated. The results indicated that if the maximum hardness, along with the minimum weight loss due to wear (or maximum wear resistance) is required; the contents of intermetallic compounds, lead phase and the solid solution phase should be more. In this way, the samples which are cooled in air and poured at 950 ºC have the high hardness and the lowest weight loss.

Słowa kluczowe

EN

microstructure; bearing; pouring; casting

PL

mikrostruktura; łożysko; odlewanie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 3
• Strony: 144--151
• Opis fizyczny: Bibliogr. 10 poz., fot., rys., wykr.

Twórcy

autor

Karimifer S.

• Department of Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran

autor

Vahdat S. E.

• Department of Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran

Bibliografia

• [1] Neale, M.J. (1993). 1-Selection of bearing type and form A2. in: Bearings, Butterworth-Heinemann.
• [2] Palmgren, A. (1924). Durability of ball bearings. ZVDI. 68, 339-341.
• [3] Neale, M.J. (1993). 10-High speed bearings and rotor dynamics A2. in: Bearings, Butterworth-Heinemann.
• [4] Committee, A.I.H., Lampman, S., Moosbrugger, C., DeGuire, E. (2008). ASM Handbook: Casting, Volume 15. ASM International.
• [5] Campbell, J. (2015). Chapter 5 - Solidification Structure. in: Complete Casting Handbook (Second Edition). Butterworth-Heinemann, Boston.
• [6] Zaheri, M. & Vahdat, S.E. (2017). Strength of the Bond of Structural Steel S235JR to Bronze SAE660 Produced by Casting in Pre-Mold. Archives of Foundry Engineering. 17(3), 149-154.
• [7] Soflaei, H. & Vahdat, S.E. (2016). Microstructure Study of Diffusion Bonding of Centrifuged Structural Steel-Bronze. Archives of Foundry Engineering. 16(2), 99-104.
• [8] Challen, B., Baranescu, R. (1999). Diesel Engine Reference Book. Butterworth-Heinemann.
• [9] ASTM E92-17. (2017). Standard Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials. in, ASTM International. West Conshohocken, PA.
• [10] ASTM G99-17. (2017). Standard Test Method for Wear Testing with a Pin-on-Disk Apparatus, in, ASTM International. West Conshohocken, PA.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).