Superplastic Warm-die and Pack Forging of Nickel-base Superalloy Powder

Joining of nickel-base superalloy single crystals

Introduction ................................................................................................................................1 Overview of Weldability of Nickel-Base Superalloys..................................................................1 Crystallography............................................................................................................................

A Comparison of the Plastic-flow Response of a Powder-metallurgy Nickel-base Superalloy (postprint)

Selection of Die Materials and Surface Treatments for Increasing Die Life in Hot and Warm Forging

In warm and hot forging, the dies are subjected to high contact pressures and temperatures. The selection of the die material, hardness and coating is critical for increasing die life. Recent studies indicate that ceramic dies and various surface treatment techniques represent, in certain applications, cost effective techniques for improving die life. This paper reviews the state of technology ...

Design of a nickel-base superalloy using a neural network

A new computational tool has been developed to model, discover, and optimize new alloys that simultaneously satisfy up to eleven physical criteria. An artificial neural network is trained from pre-existing materials data that enables the prediction of individual material properties both as a function of composition and heat treatment routine, which allows it to optimize the material properties ...

On APFIM of Grain Boundaries in a Nickel Base Superalloy

Experimental details of atom probe field ion microscopy (APFIM) of a Ni-16Cr-9Fe alloy are presented. In particular, studies concerning analysis of intergranular carbides and borides and segregation to grain boundaries are described. It was found that NiZ3B6 precipitates are very sensitive to preferential field evaporation, which necessitates optimization of the analysis conditions. In the FIM ...