Influence of Strain Aging on the Microstructure-Property of an X100 Pipeline Steel

Xiao Yong Zhang; Hui Lin Gao; Ling Kang Ji; Chuang Jing Zhuang

doi:10.4028/www.scientific.net/MSF.658.157

Paper Titles

Modeling of the Stress in 13Cr Supermartensitic Stainless Steel Welds by Artificial Neural Network
p.141

Artificial Neural Network Approach to Predict Mechanical Properties of 301 Austenitic Stainless Steel
p.145

Study of Cyclohexane Photooxidation over Pt-WO₃ Catalysts Mixed with TiO₂ under Visible Light Irradiation
p.149

Removal of NO₂ and SO₂ Using Porous Media Made from Sewage Sludge
p.153

Influence of Strain Aging on the Microstructure-Property of an X100 Pipeline Steel
p.157

Effect of Electron Beam Irradiation on the Properties of Polyethylene Oxide–TiO₂ Composite Electrolyte for Dye Sensitized Solar Cells
p.161

Study on the Static Recrystallization Behavior of Thermal Deformation of Austenitic Stainless Steel for Nuclear Power
p.165

Synthesis of Ternary Machinable Al₂O₃/Ti₂AlC Composites by High Energy Milling and In Situ Hot-Pressing Method
p.169

Novel Preparation of Silver-Coated Copper in Aqueous Solution
p.173

HomeMaterials Science ForumMaterials Science Forum Vol. 658Influence of Strain Aging on the...

Influence of Strain Aging on the Microstructure-Property of an X100 Pipeline Steel

Abstract:

The influence of strain aging on the microstructure-property characterization of an X100 pipeline steel was investigated by means of a thermal simulation technique, microscopic analysis method and mechanical properties testing. The experimental steel was prestrained in the tension at 6 pct and then was baked at 150oC, 200oC, 250oC and 300oC for 60 minutes, respectively. The results indicated that the strength and hardeness of test steel X100 increase and the plasticity and toughness decrease with the increasing of strain aging temperature, and it can get a higher ratio of yield to tensile and a lower strain-hardening coefficient which result in lower hardening capacity of X100 pipeline steel. There are two reasons for this strain aging phenomenon. One is the solute atoms of C, N in the α-Fe which Aggregated at the dislocation zones; the other is the compounds precipitation of C, N induced by the dislocations.