Interface Characterization of Bimetallic Casting with a 304 Stainless Steel Surface Layer and a Gray Cast Iron Base

Abstract:

Bimetallic castings are widely employed as working elements in winning machines which work in conditions of intensive friction wear. The main features of wear are: dynamic percussive loads, intensive abrasive wear caused by erosion and corrosion. Three cylindrical rods cavities of the same dimensions of φ 20x200 mm were made in sand mould. Different amount of liquid iron alloy with carbon equivalent of 4.14, Mn of 0.58 and Cu of 0.17 wt% was poured into the three rod cylindrical cavities over the solid 304 stainless steels cylindrical desks inserts. Good coherent interfaces for all liquid/Solid volumes (16 to 24) are produced and multi-layers interfacial microstructure bimetal are produced. Increasing the liquid/solid volumes from 16 to 24 increases the thickness of transient layer from 52 to 89 μm and decreases the amount of ledeburite in the structure of solidified gray cast iron.

• Periodical: Advanced Materials Research (Volumes 1120-1121)
• Pages: 993-998
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1120-1121.993
• Online since: July 2015
• Authors: Mohamed Ramadan*
• Keywords: 304 Stainless Steel, Bimetallic, Characterization, Gray Iron, Interface, Microstructure

References

[1] ASM Handbook (2008), V15 Casting, ASM International.

[2] ASM Metals Handbook, Properties and Selection - Irons, Steels and High-Performance Alloys, Volume 1 of the 10th Edition Metals Handbook. (1993), ASM International Handbook.

DOI: 10.31399/asm.hb.v01.9781627081610

[3] T. Wrobel, Characterization of Bimetallic Castings with an Austenitic Working Surface Layer and an Unalloyed Cast Steel Base, JMEPEG, 23 (2014) 1711–1717.

DOI: 10.1007/s11665-014-0953-4

[4] T. Heijkoop, I.R. Sare. Cast-bonding – a new process for manufacturing composite wear products, Cast Metals 3 (1989) 160-168.

DOI: 10.1080/09534962.1989.11818997

[5] J. Gawronski, J. Szajnar, P. Wróbel. Study on theoretical bases of receiving composite alloy layers on surface of cast steel castings, Journal of Materials Processing Technology, 157-158 (2004) 679-682.

DOI: 10.1016/j.jmatprotec.2004.07.153

[6] C. Baron, D. Bartocha, J. Szajnar. The determination of the thickness of composite layer for ball casting, Archives of Materials Science and Engineering, 7 (2007) 425-428.

[7] M. Cholewa, T. Wróbel, S. Tenerowicz, Bimetallic layer castings, Journal of Achievements in Materials and Manufacturing Engineering 43, 1 (2010) 385-392.

[8] T. Wróbel, Bimetallic layered castings alloy steel – grey cast iron, Archives of Materials Science and Engineering, Archives of Materials Science and Engineering, AMSE, 48, 2, (2010) 118-125.

DOI: 10.2478/v10266-012-0023-z

[9] B. Xiong, C. Caia, B. Lu, Effect of volume ratio of liquid to solid on the interfacial microstructure and mechanical properties of high chromium cast iron and medium carbon steel bimetal, Journal of Alloys and Compounds, 509 (2011) 6700–6704.

DOI: 10.1016/j.jallcom.2011.03.142

[10] M. Şimşir, L. C. Kumruoğlu, A. Özer, An investigation into stainless-steel/structural-alloy-steel bimetal produced by shell mould casting, Materials & Design, 30, 2, (2009) 264-270.

DOI: 10.1016/j.matdes.2008.04.074

[11] B. Kurt, N. Orhan, A. Hascalik , Effect of high heating and cooling rate on interface of diffusion bonded gray cast iron to medium carbon steel, Materials & Design, 28 (2007) 2229–2233.

DOI: 10.1016/j.matdes.2006.06.002