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| Title: | Optimization of Mechanical Properties of a Heat-treated Cu-bearing HSLA-80 Steel |
| Authors: | Ray, P K
Ganguly, R I
Panda, A K |
| Keywords: | HSLA steel
Heat-treatment
Optimization
Design of experiments
Mechanical properties |
| Issue Date: | 2003 |
| Publisher: | Indian Institute of Metals |
| Citation: | Transaction of Indian Institute of Metals, Vol 56, No 2, P 121-129 |
| Abstract: | HSLA-80 steel, a replacement of HY-80 steel, is widely used in Navy vessels,
where the requirement is good weldability, high strength and high low-temperature
toughness. However, an increase in strength usually causes a decrease in toughness.
Hence there is a need for optimization of the properties. The present work attempts to
optimize the mechanical properties of an HSLA-80 steel through control of heattreatment
variables. The heat treatment region, where the optimum combination of
properties is likely to be obtained, is determined by carrying out single factor
experiments over a wide range of tempering time-temperature combinations.
Subsequently further experiments are done in this zone using statistical design of
experiments. The present work involves quantification of properties by (i) classical
curve fitting technique with data obtained from single factor experiments, and (ii)
forming regression equations from 22 factorial design of experiments. Finally
optimum combin... |
| Description: | Copyright for this article belongs to Indian Institute of Metals |
| URI: | http://hdl.handle.net/2080/194 |
| Appears in Collections: | Journal Articles
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