Aluminide Coatings for GTs

of 54

Please download to get full document.

View again

All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
PDF
54 pages
0 downs
15 views
Share
Description
coating
Tags
Transcript
  FINAL REPORTAluminide Coatings for Power-Generation Applications Contract Number 4000007035 Submitted by:Ying ZhangDepartment of Mechanical EngineeringTTU Box 5014115 W 10th StreetTennessee Technological UniversityCookeville, TN 38505-0001 Collaborators:B. A. Pint, J. A. Haynes, I. G. Wright, and P. F. TortorelliMetals and Ceramics DivisionOak Ridge National LaboratoryOak Ridge, TN 37831-6156 November, 2003 Collected by : BEHTA MIRJANY, STC Co.  iiThis report has been reproduced directly from the best available copy.Available to DOE and DOE contractors from the Office of Scientific and TechnicalInformation, P.O. Box 62, Oak Ridge, TN 37831; prices available from (865) 576-8401.Available to the public from the National Technical Information Service, U.S.Department of Commerce, 5285 Port Royal Rd., Springfield, VA 22161This report was prepared as an account of work sponsored by an agency of the UnitedStates Government. Neither the United States Government nor any agency thereof, norany of their employees, makes any warranty, expressed or implied, or assumes any legalliability or responsibility for the accuracy, completeness, or usefulness of anyinformation, apparatus, product, or process disclosed, or represents that its use would notinfringe privately owned rights. Reference herein to any specific commercial product,process, or service by trade name, trademark, manufacturer, or otherwise, does notnecessarily constitute or imply its endorsement, recommendation, or favoring by theUnited States Government or any agency thereof. The views and opinions of authorsexpressed herein do not necessarily state or reflect those of the United States Governmentor any agency thereof.  iii Table of ContentExecutive Summary  .................................................................................................... 1 1.   Task I. Aluminide Coatings on Fe-based Alloys ................................................ 31.1.   The Effect of Water Vapor on the Oxidation Behavior of CVDIron Aluminide Coating .................................................................................. 31.1.1.   Introduction ......................................................................................... 31.1.2.   Experimental Procedures ...................................................................... 41.1.3.   Results ................................................................................................. 51.1.4.   Discussion ......................................................................................... 141.1.5.   Conclusions .........................................................................................161.2.   The Interdiffusion Behavior between Iron Aluminide Coatingsand Steel Substrates ....................................................................................... 171.2.1.   Introduction ........................................................................................ 171.2.2.   Experimental Procedures .................................................................... 181.2.3.   Results and Discussion ....................................................................... 191.2.3.1.   Diffusion Tests ......................................................................191.2.3.2.   Diffusion Modeling ...............................................................211.2.3.3.   Coating Lifetime Prediction ..................................................271.2.4.   Conclusions .........................................................................................29 2.   Task II. Aluminide Coatings on Ni-based Superalloys ......................................302.1.   Martensitic Transformation in CVD NiAl and (Ni,Pt)Al Bond Coatings ..........302.1.1.   Introduction .........................................................................................302.1.2.   Experimental Procedures .....................................................................312.1.3.   Results ................................................................................................312.1.4.   Discussion ...........................................................................................352.1.5.   Conclusions .........................................................................................372.2.   Cyclic Oxidation Behavior of Bare and Aluminized Ni-based Superalloyswith Various Hf Contents.................................................................................382.2.1.   Introduction .........................................................................................382.2.2.   Experimental Procedures .....................................................................382.2.3.   Results and Discussion ........................................................................382.2.3.1.   1150°C Oxidation Test of René 142 Superalloys .................. 382.2.3.2.   1100°C Oxidation Test of René 142 Superalloys....................392.2.3.3.   1150°C Oxidation Test of CVD AluminizedRené 142 Superalloys ............................................................402.2.4.   Summary .............................................................................................402.3.   Electroplating of Pt in a Laboratory Plating System .........................................43  iv 2.3.1.   Introduction .........................................................................................432.3.2.   Experimental Procedures .....................................................................432.3.3.   Results and Discussion ........................................................................442.3.3.1.   Effect of Electroplating Current Density on PtPlating Rate ...........................................................................442.3.3.2.   Effect of Electroplating Current Density on PtThickness Distribution ..........................................................452.3.4.   Summary .............................................................................................463.   Acknowledgements  ...............................................................................................464.   References  .............................................................................................................47
Related Search
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks