Research on Fluctuations in Work Hardening Rate of a Fe-Mn-Al-C Steel

Chao Zhao; Ren Bo Song; Lei Feng Zhang; Fu Qiang Yang; Shuai Qin

doi:10.4028/www.scientific.net/MSF.817.288

Paper Titles

Study on Continuous Annealing Process for Ultrathin Cold-Rolled SPCC Steel
p.268

Research on a New Type of Martensite Stainless Steel Electrode Used for Hardfacing
p.273

Research on the Microstructure and Microhardness of 9Cr18 Semi-Solid Billet
p.278

Effect of Annealing Temperature on Microstructures and Mechanical Properties of 1000MPa Grade Cold Rolling High-Strength Steel on Ultra-Fast Cooling Condition
p.283

Research on Fluctuations in Work Hardening Rate of a Fe-Mn-Al-C Steel
p.288

Microstructures and Properties of Low-Density High Strength-Toughness Fe-18Mn-9.5Al-0.65C Steel
p.293

Dendritic Growth Characteristics of Cu-Rich Zone within Phase Separated Fe₅₀Cu₅₀ Alloy
p.299

Effect of Ti Element on Microstructure and Properties of Cu-Cr Alloy
p.307

Influence of the Weld Heat Input on the Electrochemical Behavior of the 921A High Strength Steel Welding Joints
p.312

HomeMaterials Science ForumMaterials Science Forum Vol. 817Research on Fluctuations in Work Hardening Rate of...

Research on Fluctuations in Work Hardening Rate of a Fe-Mn-Al-C Steel

Abstract:

The fluctuations in the work hardening rate of a Fe-12Mn-10Al-0.7C (wt. %) steel have been investigated through scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The work hardening rate of the heat treated sample had a tendency of decrease with fluctuations. The first raise in the work hardening rate curve at about 2% true strain is attributed to the shearing of the small ferrite grains by austenite, and the deformation induced twinning can contribute to the raise and drop in the work hardening rate curve. The second fluctuation range at the true strain between 10% and 14% is mainly related to the activation of planar slip on the principle slip plane which is suppressed by twins in austenite.