Electrodeposition and the optimization of molybdenum layer on nb-ti-si based ultra-high alloy from aqueous solution

Gao Yue, Xi Ping Guo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Depositing a molybdenum layer through electrodeposition is a possible and economical way to prepare Mo layer. It could be a new preparation of MoSi2 coating on Nb-Ti-Si based alloys combined with halide pack cementation. In this paper, the effects of pre-coated Re layer on the substrate, pH of the electrolyte, water to acetate ratio and the applied current density on the deposition were investigated and optimized to obtain low oxygen content, adherent molybdenum coating on Nb-Ti-Si based alloys. The surface morphology and cross section were characterized by SEM. The thickness of the deposit is about 6 μm and nodules and cracks were observed on the surface. EDS and EPMA analysis suggested the presence of Mo and its oxides in the deposit; XPS results confirmed the presence of Mo, Mo2 O3 and MoO3 in the as-deposited layer. The crystal structure of as-prepared coating was amorphous by the XRD investigation, and the metallic molybdenum was the main existence form of the molybdenum element in the deposit.

Original languageEnglish
Title of host publicationFunctional and Functionally Structured Materials II - Chinese Materials Conference 2017, CMC 2017
EditorsYa Fang Han
PublisherTrans Tech Publications Ltd
Pages396-405
Number of pages10
ISBN (Print)9783035712445
DOIs
StatePublished - 2018
EventChinese Materials Conference, CMC 2017 - Yinchuan City, Ningxia, China
Duration: 6 Jul 201812 Jul 2018

Publication series

NameMaterials Science Forum
Volume913
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceChinese Materials Conference, CMC 2017
Country/TerritoryChina
CityYinchuan City, Ningxia
Period6/07/1812/07/18

Keywords

  • Deposit component
  • Deposit structure
  • Molybdenum electrodeposition
  • Nb-Ti-Si based alloy

Fingerprint

Dive into the research topics of 'Electrodeposition and the optimization of molybdenum layer on nb-ti-si based ultra-high alloy from aqueous solution'. Together they form a unique fingerprint.

Cite this