Microstructural Observations of the Direct Quenched Offshore Steel

Chieh Yu; Ta Chien Cheng; R.K. Shiue; Tze Ching Yang; Ching Yuan Huang

doi:10.4028/www.scientific.net/KEM.732.55

Paper Titles

Effect of Sc on As-Cast Microstructures and Mechanical Properties of Al-Si-Mg-Cu-Ti Alloys
p.32

Influence of Sever Plastic Deformation on the Consolidation Behavior of Al-SiC Mixed Powder
p.38

Influence of TMTD on Cross-Linking Degradation of the Waste Tire Rubber
p.43

Intergranular Corrosion Sensitivity of Welded Joint of Super304H at High Temperature
p.50

Microstructural Observations of the Direct Quenched Offshore Steel
p.55

Microstructure and Properties of Fe-B-C Cast Wear-Resistant Alloy
p.59

The Effects of Ba(Zr_0.05Ti_0.95)O₃ Addition on Piezoelectric Properties and Microstructures of (Na_0.5Bi_0.5)_0.94Ba_0.06TiO₃ Ceramics
p.69

The Influence of the Heating Method on the Microstructure Evolution of Thermal Deformed TA15 Titanium Alloy
p.76

RETRACTED: The Study of Composition and Morphology of Pd-Ag Alloy Powders by Electrodeposition
p.81

HomeKey Engineering MaterialsKey Engineering Materials Vol. 732Microstructural Observations of the Direct...

Microstructural Observations of the Direct Quenched Offshore Steel

Abstract:

The purpose of this investigation is focused on the direct quench and temper mechanisms of the high strength offshore steel. Microstructural analyses of martensite and retained austenite in the direct quenched steel, simulations of martensitic transformation temperatures, M_s/M_f, and morphologies of bainite and ferrite have been evaluated in the experiment. Additionally, carbide formation after temped at various temperatures and microhardness depth profiles after heat treating are also included in the study. The direct quenched steel is primarily comprised of martensite, bainite and a few retained austenite with Vickers microhardness above 300. Tempered martensite, iron carbide and bainite are widely observed from all tempered specimens.