+Advanced Search
Home > Archive>Volume 46, Issue 9, 2017 >2493-2498
PDF HTML XML Export Cite reminder
Effect of W content on oxidation resistance of experimental third generation single crystal superalloy
Author:
Affiliation:

Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials

Clc Number:

TGl32．3 2

  • Article
    • | |
  • Metrics
    • |
  • Reference
    • |
  • Related
    • |
  • Cited by
    • | |
  • Comments
    Abstract:

    The isothermal oxidation behaviors of three kinds of experimental third generation single crystal superalloys with different tungsten contents were investigated at 1100℃ in air by X-ray diffraction (XRD), scanning election microscopy (SEM) and energy disperse X-ray analysis (EDX). The experimental results showed that three kinds of alloys approximately obeyed subparabolic rate law during oxidation of 100h at 1100℃. The mass gains of 8wt. % W-containing alloy remained higher than the mass gains of 6 wt.% and 7wt.% W-containing alloys. The oxide scale exposed at 1100℃ was consist of three layers: an outer Ni(Co)O layer, an intermediate layer mainly composed of oxides and spinels, and an inner Al2O3 layer. The γ′-free layer was formed in the base alloy. In the current alloy system, the transition of oxidation mechanism happened with increasing W content at 1100℃, therefore, it was found that the alloys with a W content less 7% exhibited relative balance between oxidation resistance and solution strength.

    Reference
    Related
    Cited by
Get Citation

[WANG Xiaoguang, LI Jiarong, SHI Zhenxue, LIU Shizhong, YUE Xiaodai. Effect of W content on oxidation resistance of experimental third generation single crystal superalloy[J]. Rare Metal Materials and Engineering,2017,46(9):2493~2498.]
DOI：[doi]

Copy
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:May 11,2015
  • Revised:January 15,2016
  • Adopted:February 24,2016
  • Online: November 29,2017

Total visitors：12788164

Address：96 weiyanglu, xi'an,Shaanxi, P.R.China Postcode：710016 ServiceTel：0086-26-86231117

E-mail：rmme@c-nin.com

Copyright:Rare Metal Materials and Engineering ® 2025 All Rights Reserved Support:Beijing E-Tiller Technology Development Co., Ltd. ICP: