Share Email Print
cover

Proceedings Paper

HAZ characteristics of laser cladding remanufacturing ductile iron component
Author(s): Yongjian Li; Shiyun Dong; Shixing Yan; Jiawu He; Peng He; Binshi Xu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Ductile cast iron is a ferrous alloy characterized by spheroidal graphite, and it is difficult to be remanufactured own to the complicated phase evolution . In this work, laser cladding using Ni-Cu based alloy power as the cladding material has been completed. The grain morphology of cladding and related phase evolution in partially melted zone (PMZ) and heat affected zone (HAZ) by single pass and multi layer cladding have been investigated. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive microanalysis (EDS) were used to identity the microstructure and phase composition of cladded layers and interfaces. Microhardness of the samples was evaluated after laser cladding. The result revealed that entirely different phases were formed by single pass and multi layer cladding progress. Nickel, carbon, and copper elements migrated apparently across the interface. It was also found the microhardness of the substrate was lower than that of the cladded layers, PMZ and HAZ. In samples processed with single pass and multi layer cladding, microhardness in PMZ reached up to 900 and 800 HV respectively.

Paper Details

Date Published: 24 October 2017
PDF: 6 pages
Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 1045717 (24 October 2017); doi: 10.1117/12.2283511
Show Author Affiliations
Yongjian Li, Harbin Institute of Technology (China)
Shiyun Dong, Academy of Armored Forces Engineering (China)
Shixing Yan, Academy of Armored Forces Engineering (China)
Jiawu He, Academy of Armored Forces Engineering (China)
Peng He, Harbin Institute of Technology (China)
Binshi Xu, Harbin Institute of Technology (China)
Academy of Armored Forces Engineering (China)


Published in SPIE Proceedings Vol. 10457:
AOPC 2017: Laser Components, Systems, and Applications
Shibin Jiang; Lijun Wang; Lan Jiang; Long Zhang, Editor(s)

© SPIE. Terms of Use
Back to Top