Investigation on Dissolving and Strain Induced Precipitation Behavior in Nb-Bearing Microalloyed Steel

Shao Qiang Yuan; Guo Li Liang; Hui Bin Wu

doi:10.4028/www.scientific.net/AMM.109.3

Paper Titles

Preface, Organizing Committees and Sponsors

Investigation on Dissolving and Strain Induced Precipitation Behavior in Nb-Bearing Microalloyed Steel
p.3

Investigation on Nano-Scale Structure of Plain and FA Cement Paste
p.7

Numerical Simulation of Different Projectile Penetrating the Single-Layer Steel Target
p.12

Microstructure Modeling for Prediction of Thermal Conductivity of Plain Weave C/SiC Fibre Bundles Considering Manufacturing Flaws
p.17

Effect of Annealing Process and Cold Reduction Ratio on Microstructure and Mechanical Property of 350MPa Grade Structural Hot Dip Galvanized Steel Sheets
p.23

The Corrosion Behavior of 304L and 316L Stainless Steel in Food Grade Phosphoric Acid Solutions
p.28

Numerical Study on the Equivalent Target for Deep Penetration
p.32

The Study on Engineering Construction Material Information Management System Based on .NET
p.37

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 109Investigation on Dissolving and Strain Induced...

Investigation on Dissolving and Strain Induced Precipitation Behavior in Nb-Bearing Microalloyed Steel

Abstract:

Thermal simulation test, TEM(Transmission Electron Microscope) and nanobeam EDS techniques were used to investigate the dissolving and precipitation behavior in Nb-bearing mciroalloyed steel. The experimental results indicate that: there are two families of precipitates in the as forged samples. The larger precipitates of Nb(C,N) disappear after being held for 2h at 1300°C,while the inclusions of MnS formed from the solidification even remain for 48h held at that temperature. After 30% of predeformtion at 850°C and 900°C, the strain-induced precipitation occurs, that is, the other tiny precipitates. Compared with the samples relaxed at 850°C, the ones that are held at 900°C show larger particles by same holding time but demonstrate the same size when the relaxation time reaches 1000s.

You might also be interested in these eBooks

Emerging Systems for Materials, Mechanics and Manufacturing

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 109)

Pages:

3-6

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.109.3

Citation:

Cite this paper

Online since:

October 2011

Authors:

Shao Qiang Yuan, Guo Li Liang, Hui Bin Wu

Keywords:

Dissolving, Relaxation, Strain-Induced Precipitation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Shanwu Yang, Shaoqiang Yuan, Xuemin WANG, Behavior of precipitation in bainitic steel during relaxation processing of RPC technique, Jour. Univer. Sci. Tech. Beijing. 11(3) (2004) 230-234

Google Scholar

[2] Hong S G, Kang K B, Park C G, Strain-Induced Precipitation of NbC in Nb and Nb-Ti Microalloyed HSLA Steels, Scrita Materialia. 46 (2002) 163-168

DOI: 10.1016/s1359-6462(01)01214-3

Google Scholar

[3] Medina S F, Quispe A, Influence of Strain on Induced Precipitation Kinetics in Microalloyed Steels, ISIJ International. 36(10) (1996) 1295-1300

DOI: 10.2355/isijinternational.36.1295

Google Scholar

[4] YI Hai-long, DU Lin-xiu, WANG Guo-dong, Strengthening mechanism of a new 700MPa hot rolled high strength steel, Jour. Iron & steel research, inter.. 15(2) (2008) 76-80

DOI: 10.1016/s1006-706x(08)60036-9

Google Scholar

[5] Shaoqiang Yuan, Shanwu Yang, Xuemin Wang, Over-relaxation effect of deformed austenite on ageing behavior of an Nb-bearing microalloyed steel, Jour. Univer. Sci. Tech. Beijing. 12(3) (2005) 248-251

Google Scholar