They have used anisothermal and
isothermal annealing methods to do it.
[18] (and for quenching followed by
isothermal annealing at 60[degrees]C Li et al.
In its production of cast components, AEP uses a significant amount of nitrogen for
isothermal annealing and ferritic nitrocarburizing.
For this research, the long-term
isothermal annealing at room temperature was used.
Among the topics there are the comparative Mossbauer analysis of the superfine structure of Hadfield steel under different kinds of severe deformation, the isochronal and
isothermal annealing of wrought aluminum alloy, the quantitative analysis of fiber fracture in powder injection molded metal composites, the characterization and properties of copper-silica sand nanoparticle composites, modeling three-dimensional moving heat sources in a semi-infinite medium and applications to submerged arc welding, and self-diffusion in nano zinc sulphide.
Recently investigated spheroidization processes can be divided into four groups:
isothermal annealing at a temperature slightly below [A.sub.1], thermal cycling near [A.sub.1],
isothermal annealing with the aid of prior cold work and finally, hot deformation before, during or after the transformation of austenite to pearlite (Kamyabi-Gol, 2010).
The condensates were investigated in the initial condition and after heat treatment,
isothermal annealing in vacuum at T = 650[degrees]C, for 2 h.
For example, the Universal Instruments Consortium observed that, upon
isothermal annealing at 150[degrees]C, some SnAgCu (SAC) solder joints showed increased void formation at the interface between the Cu-Sn intermetallic layer and the copper plating.
The part required subsequent
isothermal annealing and shot blasting.