Hard, Wear Resistant Metal Surfaces for Industrial Applications through Laser Powder Deposition

Abstract:

Article Preview

Most materials produced today are monolithic structures that are heat treated to perform a particular function. Laser Powder Deposition (LPD) is a technology capable of modifying a metallic structure by adding the appropriate material to perform a desired function (e.g., wear and corrosion resistance). LPD offers a unique fabrication technique that allows the use of soft (tough) materials as base structures. Through LPD a hard material can be applied to the base material with little thermal input (minimal dilution and heat-affected-zone {HAZ}), thus providing the function of a heat treatment or other surface modifications (e.g., carburizing, nitriding, thermal spray and electroplating). Several materials (e.g., Stellite 6 &21, 316 SS, 420 SS, M4, Rex 20, Rex 121, 10V, AeroMet 100, CCW+, IN 625 and IN 718) have been deposited on to carbon steel (4140, 4340, 1566, 1018) substrates to provide various functions for a number of industrial applications. These surface modifications have been evaluated through standard wear testing (ASTM G-65), surface hardness (Rc), micro-hardness (vickers), and optical microscopy. The results from these evaluations will be presented along with several industrial application case studies.

Info:

Periodical:

Materials Science Forum (Volumes 534-536)

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim

Pages:

1537-1540

Citation:

J. Sears and A. Costello, "Hard, Wear Resistant Metal Surfaces for Industrial Applications through Laser Powder Deposition", Materials Science Forum, Vols. 534-536, pp. 1537-1540, 2007

Online since:

January 2007

Export:

Price:

$38.00

[1] M. T. Ensz, et. al., Critical Issues For Functionally Graded Material Deposition by Laser Engineered Net Shaping (LENSTM), Proc. of the 2002 Int. Conf. on Metal Powder Deposition for Rapid Manufacturing, San Antonio, TX, April 8-10, 2002. Ed. by MPIF, pp.195-202.

[2] B. L. Wang, Y. W. Mai, X. H. Zhang, Functionally Graded Materials under Severe Thermal Environments, J. Am. Ceram. Soc., Vol. 88, No. 3, 2005, pp.683-690.

[3] R., Villar, Laser Cladding, International Journal of Powder Metallurgy, Vol. 37, No. 2, March 2001, pp.29-48.

[4] A C. Costello, S K. Koduri, and J. W. Sears, Optimization of Laser Powder Deposition for 316L Stainless Steel, Proc. of ICALEO 03, October 13-16, 2003, pp.144-152.

[5] G. Bao, H. Cai, Delamination Cracking in Functionally Graded Coating/Metal Substrate Systems, Acta mater, Vol. 45, No. 3, 1997, pp. -1055-1066.

DOI: https://doi.org/10.1016/s1359-6454(96)00232-7

[6] V. Shankar, et. al., Microstructure and mechanical properties of Inconel 625 superalloy, Journal of Nuclear Materials, Vol. 288, No. 2-3, 2001, pp. -222-232.

DOI: https://doi.org/10.1016/s0022-3115(00)00723-6

[7] V. Kuzucu, et. al., Microstructure and phase analyses of Stellite 6 plus 6 wt. % Mo alloy, Journal of Materials Processing Technology, Vol 69 No. 1-3, 1997, pp. -257-263.

DOI: https://doi.org/10.1016/s0924-0136(97)00027-7

[8] Jong-Choul et. al. Effect of Mo on the microstructure and wear resistance of Co-base Stellite hardfacing alloys, Surface and Coatings Technology, Vol. 166, No. 2-3, 2003, pp. -117-126.

DOI: https://doi.org/10.1016/s0257-8972(02)00853-8

[9] A. Hidouci et. al., Microstructural and mechanical characteristics of laser coatings, Surface and Coatings Technology Vol. 123 No. 1, 2000, pp. -17-23.

DOI: https://doi.org/10.1016/s0257-8972(99)00394-1

[10] S. Niederhauser, B. Karlsson, Mechanical properties of laser cladded steel, Materials Science and Technology Vol. 19, No. 11, 2003 pp. -1611-1616.

DOI: https://doi.org/10.1179/026708303225008103

[11] S. Sun, Y. Durandet, M. Brandt, Parametric investigation of pulsed Nd: YAG laser cladding of Stellite 6 on stainless steel, Surface and Coatings Technology, Vol. 194, No. 2-3, pp. -225-231.

DOI: https://doi.org/10.1016/j.surfcoat.2004.03.058