PURPOSE: A method for heat treating hot rolled 420-type martensitic stainless steel is provided to reduce a time required to transform austenite into a mixed phase of ferrite and carbide in a batch annealing furnace(BAF) by replacing a portion of carbon, a main constituent of cast segregation,...
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Stainless steel discoloration during heat treating I have a question about 302 and 304 stainless steel turning blue during heat treating. We used to use an old Stuart cell hydrogen generator to produce our atmosphere for the furnace but when we annealed stainless it would turn dark blue. When ...
Q.I'm new to the whole method of heat treating but I've got a question that I hope some of you have the answers to. My plant machines small cones for a valve assembly out of 17-4 PH Condition A Stainless Steel. After it is machine and ultrasonically washed it is send out to be...
In this context, the optimal temperature control for brazing cemented carbide to steel directly conflicts with the recommended procedure for quenching and tempering transformation hardening tool steels. A controlled low cooling rate is critical to suf- ficiently reduce the already high thermal-induced ...
The quenched steel has a high dislocation density of about 1015 m-2, which correlated with the µ-strain values that was found by Harjo et al. [41]. Lower tempering temperature (420 °C) contributed to higher values of µ-strain, i.e., internal stresses due to the dislocations and ...
This paper investigates the level of properties enhancement achievable by heat-treating Ti-6Al-4V alloy produced from a blended powder mixture using a thermomechanical powder consolidation route involving warm uniaxial pressing and vacuum sintering follo