1985-11-11

Mechanical Properties of Dual-Phase Steels Depending on Transformed Ferrite Fraction 852215

Effects of transformed ferrite fraction on the mechanical properties of dual-phase steels have been studied on the basis of observation on austenite-to-ferrite transformation behavior during the post-anneal cooling of intercritical annealing. Various fractions of transformed ferrite were obtained by changing the intercritical annealing temperature. As the transformed ferrite fraction was increased up to about 40 percent, ductility of dual-phase steel was improved due to uniform distribution of martensite particles. When the transformed ferrite fraction exceeded the retained ferrite fraction, however, the ductility was deteriorated even with the fine distribution of martensite particles in matrix. The significance of these results is discussed in relation to the austenite-to-ferrite transformation behavior during the intercritical annealing.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: Purchase more aerospace standards and aerospace material specifications and save! AeroPaks off a customized subscription plan that lets you pay for just the documents that you need, when you need them.
X