ProgramMaster Logo
Conference Tools for 2020 TMS Annual Meeting & Exhibition
Register as a New User
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Microstructural Template Consisting of a Face-Centered Cubic Matrix with Ordered Precipitates: Microstructural Evolution and Properties
Presentation Title Alloying for Corrosion Resistance: the Effect of Manganese and Silicon on a Polycrystalline Nickel-based Superalloy
Author(s) Stella Pedrazzini, Noel Glaenzer, Mark Hardy, Paul Mignanelli, T. William Clyne, Howard Stone
On-Site Speaker (Planned) Stella Pedrazzini
Abstract Scope Nickel superalloys are employed in the hottest part of jet engines and industrial gas turbines for power generation. In these harsh environments, sulphur contamination can occur in-service, causing reductions in the predicted component lifetime. Our work uses environmental exposures and state of the art characterisation to explore the effect of low-level silicon (0.5 wt%) and manganese (1 wt%) additions on the sulphidation and type-2 hot corrosion response of a polycrystalline nickel superalloy. Silicon was added promote formation of a compact dual-layer chromia-alumina scale that reduced oxidation rate in long-term experimentsand improved resistance to hot corrosion from coupled NaCl + SOx exposure. Manganese improved oxidation resistance by creating MnCr2O4, which reduced the oxidation rate but did not change the oxide scale morphology. The presence of Mn (a known sulphur scavenger) proved less effective than silicon, reducing the sulphidation and corrosion damage extent but not the overall depth.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


A Nickel-based Superalloy Dual-reinforced by L12 Ni3Al and D022 Ni3V Ordered-fcc Precipitates
Alloying for Corrosion Resistance: the Effect of Manganese and Silicon on a Polycrystalline Nickel-based Superalloy
Coarsening and Creep Behavior of Co-Ni-Al-W-Ti-Ta-B Superalloy with High γ′ Solvus Temperature
Coarsening Kinetics and Mechanical Properties of fcc Compositionally Complex Alloys Strengthened by L12 Precipitates
Correlative High-resolution Characterization of the Early Stages of Precipitation During Direct Aging of Alloy 718
D022 + D022’ Dual-phase Microstructure in As-cast Al-Mo-Ti Alloys
Elevated Temperature Microstructure Evolution and Properties of an Equiatomic CrCoNi Superalloy Containing Al,Ti
FCC High-entropy Alloys Strengthened with L12 Precipitates: Alloying Strategies and Highlights
High Temperature Microstructural Stability Mechanisms Revealed by Microscopy in Al-Cu-Mn-Zr Alloys
Impact of L12-phase Dispersoids on the Hardening Behavior of Multi-phase Strengthened Aluminum Alloys
In-situ Transmission Electron Microscopy Investigation of Continuous Precipitation of Ni3Mo in a Ni-25Mo-8Cr Alloy Formed by Direct Current Magnetron Sputtering
Mapping the Mechanical Property Space of Al-Cu-Mn-Zr (ACMZ) Cast Aluminum Alloys with Superior Microstructural Stability
Nanoscale Precipitation-strengthened Al-Er-Sc-Zr-(V,Nb,Ta) Alloys
Novel fcc-Cu Matrix Based High Temperature Alloys Strengthened by Ordered Precipitates
Novel Microstructural Template Based on Ordered Intermetallic Precipitation in FCC Based Complex Concentrated Alloys
Ordered Precipitates and Mechanical Properties of Nickel-base Superalloys Studied by Analytical Scanning and Transmission Electron Microscopy
Precipitation and Deformation Mechanisms of γ’/γ” Co-precipitates in Alloy 718
Sc-free Nanoprecipitate-strengthened Aluminum Alloys with Exceptional Creep Resistance
Stress Induced Sensitization in HAZ of 304 LN Austenitic Stainless Steel
The Quantitative Model for Heat Treatment Parameters and Gamma Prime Variations on Nickel-base Superalloys

Questions about ProgramMaster? Contact