ProgramMaster Logo
Conference Tools for Materials Science & Technology 2020
Register as a New User
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting Materials Science & Technology 2020
Symposium Advanced Coatings for Wear and Corrosion Protection
Presentation Title The Surface Integrity of Hard Coatings and Surface Treatments on Alloy 17-4PH in Highly Soured Environments
Author(s) Manuel P. Marya, Dean Lauppe, Virendra Singh
On-Site Speaker (Planned) Manuel P. Marya
Abstract Scope Alloy 17-4PH is PH martensitic stainless steel with short-comings for Oil & Gas applications, yet it is widely used for well services. In common to other load-bearing alloys, its tribological properties are limited, requiring use of surface hardening processes by diffusion or using adherent hard coatings. This investigation explores 17-4PH in highly soured conditions when nitrided through various processes, solution plated (Ni-11%P, Ni-Co-P), tungsten carbide, or DLC vapor deposited. Though immersion tests of various durations (2-5 weeks in up to 1500psi H2S at 4000psi), the 17-4PH surface is found to be relatively resistant to the environment while many surfaces experience various forms of damage. Mechanisms of weight-loss and/or localized corrosion are explained based on optical, SEM, and EDS analyses, all complementing macroscopic and weight-loss measurements. In turns, this investigation clarifies best practices for stainless steels outside the scope of environmentally assisted cracking, the normal limiting factor for 17-4PH.


Electrochemical Corrosion Behaviors of Nitrogen-enriched Stainless Steels and High Chromium White Irons
High-performance Boron-based Coatings Alloyed with Chrome to Protect Against Wear and Corrosion
High Performance Amorphous Based Thermal Sprayed Coatings for Molten Salt Environment
Improved Coating Performance of REACH Compliant Trivalent Chromium Plating Process for Functional Applications
Production of Chromium-aluminized Coatings to Protect Against Wear and Corrosion
The Surface Integrity of Hard Coatings and Surface Treatments on Alloy 17-4PH in Highly Soured Environments

Questions about ProgramMaster? Contact