Microstructure of Laser Cladded Cobalt-Based Alloy Coating on T10 Tool Steel


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Co-based alloy coating was fabricated by powder feeding laser cladding on T10 tool steel. The microstructure and phase composition were investigated by scanning electron microscope (SEM) and X-ray diffractometer (XRD). The results showed that the different solidification microstructures on the section, such as planar, cellular and dendrite formed from the interface to the surface. The main phase γ-Co and another phase Cr23C6 existed in the original coating, however, the main phase γ-Co was unchanged, and another phase was replaced by Cr7C3 accompanying with Co3C and Co4B precipitations after aging treatment.



Edited by:

Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen






Q. Zhao et al., "Microstructure of Laser Cladded Cobalt-Based Alloy Coating on T10 Tool Steel", Key Engineering Materials, Vol. 464, pp. 694-697, 2011

Online since:

January 2011




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