The Effect of B2-Like Structure on Hardening of Cu Bearing High Purity Steel

Hui Ping Ren; Hai Yan Wang; Zong Chang Liu

doi:10.4028/www.scientific.net/AMR.51.49

Paper Titles

The Effect of Morphology and Distribution of Sulfides on Mechanical Properties and Fatigue Life of Non-Quenched and Tempered Steel
p.11

The Review of the Development of Oil&Gas Steels in Baosteel
p.21

Microstructure and Property of the New Type White Cast Iron
p.31

Development and Application of High Strength Ultra-Thin Hot-Rolling Steel Sheet
p.41

The Effect of B2-Like Structure on Hardening of Cu Bearing High Purity Steel
p.49

Mg₆₅Cu₂₅Gd₁₀ BMG Rod and Ribbon and Composite Synthesized via Spray Forming
p.57

The Crystal Structure and Mechanical Property of AZ80-2%Li Mg Alloy
p.65

Vacuum Repair Brazing of the Inconel 939 Superalloy
p.71

A New Method of Fabricating the Anode Powder for the Application of Solid Oxide Fuel Cells
p.79

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 51The Effect of B2-Like Structure on Hardening of Cu...

The Effect of B2-Like Structure on Hardening of Cu Bearing High Purity Steel

Abstract:

The precipitate behavior of copper in the high purity structural steel was investigated by means of transmission electron microscope (TEM), and aging hardening mechanism was investigated based on the corresponding phase transformation mechanism. The results show that lots of Cu rich clusters exist in supersaturated ferrite matrix in solid solution, which evolve to B2-like structure during aging. It is found that the hardening in the initial stage is controlled by the coherency relationship of the B2-like structure with matrix that forms the obstacle of the dislocation motion, while the decrease in hardness after the peak is attributed to the loss of coherency, which should highly likely be the dominant reason of aging hardening in Cu bearing high purity steels.