Results (
Indonesian) 1:
[Copy]Copied!
From the results of this work, annealing, normalising and tempering heat treatment processes were found to produce noticeable effects on the material’s microstructural characteristics (phases and grain sizes) and hardness property in inoculated and non- inoculated conditions. However, due to variations in heat treatment effects, the resulting microstructures were found to be markedly different, and in addition, more graphite morphology were observed in the microstructure of the inoculated annealed specimens relative to the corresponding non-inoculated ones for all types of heat treatment considered.Generally, the material’s hardness was found to decrease in order of normalising, annealing and tempering heat treatment processes, and in relative to the non- inoculated specimens, hardness property of the inoculated ones were lower for all the processes of heat treatment considered. When compared to the as-cast sample, the heat treated specimens were found to reveal lower hardness values, and as a consequence, improvement in hardness property of the material has been achieved via the three heat treatment routes.
Being translated, please wait..
