Microstructure and erosion behavior of laser cladding Co-based alloy on DZ125 superalloy

Yong Quan Li, Fa Qin Xie, Jun Zhou, Xiang Qing Wu

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Metallurgical bonding and compact alloy layers were prepared by laser cladding Co-based alloy powders on DZ125 superalloy. The microstructure of the laser cladded coating was investigated by using optical microscopy (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD) and sectional microhardness was measured on a HV-1000 microhardness tester. The erosive resistance of the coating was investigated. The results indicated good metallurgical bonding between coating and substrate. Rapid directional solidification was found at the interface where the growth direction was perpendicular to the interface. The erosive resistance of the coatings depended on impact angles, and hardness was one of factors affecting the erosion rate of material.

Original languageEnglish
Pages (from-to)53-56
Number of pages4
JournalMocaxue Xuebao/Tribology
Volume30
Issue number1
StatePublished - Jan 2010

Keywords

  • Co-based alloy
  • Erosion
  • Hardness
  • Laser cladding

Fingerprint

Dive into the research topics of 'Microstructure and erosion behavior of laser cladding Co-based alloy on DZ125 superalloy'. Together they form a unique fingerprint.

Cite this