Enhanced Hardening by Multiple Microalloying in Low Carbon Ferritic Steels with Interphase Precipitation

2021 ◽  
Author(s):  
Yongjie Zhang ◽  
Goro Miyamoto ◽  
Tadashi Furuhara
Keyword(s):  
Ferritic Steels ◽  
Low Carbon ◽  
Interphase Precipitation

Precipitation at the transformation interface of pearlite in steel

1990 ◽  
Vol 48 (4) ◽  
pp. 912-913
Author(s):  
F. A. Khalid ◽  
D. V. Edmonds
Keyword(s):  
Thin Foil ◽  
Carbon Steels ◽  
Model Alloy ◽  
Low Carbon ◽  
High Carbon ◽  
Growth Interface ◽  
Medium Carbon ◽  
Interphase Precipitation ◽  
Solution Treated ◽  
Wide Range

The austenite/pearlite growth interface in a model alloy steel (Fe-1lMn-0.8C-0.5V nominal wt%) is being studied in an attempt to characterise the morphology and mechanism of VC precipitation at the growth interface. In this alloy pearlite nodules can be grown isothermally in austenite that remains stable at room temperature thus facilitating examination of the transformation interfaces. This study presents preliminary results of thin foil TEM of the precipitation of VC at the austenite/ferrite interface, which reaction, termed interphase precipitation, occurs in a number of low- carbon HSLA and microalloyed medium- and high- carbon steels. Some observations of interphase precipitation in microalloyed low- and medium- carbon commercial steels are also reported for comparison as this reaction can be responsible for a significant increase in strength in a wide range of commercial steels.The experimental alloy was made as 50 g argon arc melts using high purity materials and homogenised. Samples were solution treated at 1300 °C for 1 hr and WQ. Specimens were then solutionised at 1300 °C for 15 min. and isothermally transformed at 620 °C for 10-18hrs. and WQ. Specimens of microalloyed commercial steels were studied in either as-rolled or as- forged conditions. Detailed procedures of thin foil preparation for TEM are given elsewhere.

Revealing the influence of Mo addition on interphase precipitation in Ti-bearing low carbon steels

2021 ◽  
pp. 117475
Author(s):  
Haokai Dong ◽  
Hao Chen ◽  
Ahmadreza Riyahi khorasgani ◽  
Boning Zhang ◽  
Yongjie Zhang ◽  
...  
Keyword(s):  
Carbon Steels ◽  
Low Carbon ◽  
Low Carbon Steels ◽  
Interphase Precipitation

scholarly journals Erratum to “Tensile Behavior of Ti,Mo-added Low Carbon Steels with Interphase Precipitation” [ISIJ Int. 54(1): 212-221 (2014)]

2014 ◽  
Vol 54 (2) ◽  
pp. 474-474 ◽  
Author(s):  
Naoya Kamikawa ◽  
Yoshihisa Abe ◽  
Goro Miyamoto ◽  
Yoshimasa Funakawa ◽  
Tadashi Furuhara
Keyword(s):  
Carbon Steels ◽  
Tensile Behavior ◽  
Low Carbon ◽  
Low Carbon Steels ◽  
Interphase Precipitation

An Evaluation of the Material Capabilities of Low Carbon 2 1/4 Cr-1 Mo Steel Forgings

1976 ◽  
Vol 98 (4) ◽  
pp. 316-322 ◽  
Author(s):  
F. P. Fetterolf ◽  
J. H. Hurtt
Keyword(s):  
Nuclear Power ◽  
Ferritic Steels ◽  
Low Carbon ◽  
Development Programs ◽  
Nuclear Power Generation ◽  
Steam Generation ◽  
Materials Development ◽  
Industrial Data ◽  
Full Size ◽  
Clinch River

Recent advances in the nuclear power generation field have pointed out the need for ferritic steels which will maintain properties at high operating temperatures for extended periods of time. Present designs for the Clinch River Breeder Reactor Project (CRBRP) specify the use of low carbon 2 1/4 Cr - 1 Mo steel for the Steam Generation systems. Many materials development programs have concluded the acceptability of this material; however, little industrial data are available on the mechanical properties of full size production components. This paper evaluates two heats of low carbon 2 1/4 Cr-1 Mo steel subjected to various heat treatments.

Comparative Study of VC, NbC, and TiC Interphase Precipitation in Microalloyed Low-carbon Steels

2020 ◽  
Vol 51 (12) ◽  
pp. 6149-6158
Author(s):  
Yongjie Zhang ◽  
Goro Miyamoto ◽  
Kunio Shinbo ◽  
Tadashi Furuhara
Keyword(s):  
Comparative Study ◽  
Carbon Steels ◽  
Low Carbon ◽  
Low Carbon Steels ◽  
Interphase Precipitation

Through Thickness Microstructural Investigation of Temper Rolled Ferritic Steels for Thin Sheet Applications

2010 ◽  
Vol 89-91 ◽  
pp. 73-78
Author(s):  
Caroline Luis ◽  
Monique Gaspérini ◽  
Thierry Chauveau
Keyword(s):  
Thin Sheet ◽  
Sheet Thickness ◽  
Ferritic Steels ◽  
Temper Rolling ◽  
Interstitial Free ◽  
Low Carbon ◽  
X Ray Diffraction ◽  
Shear Tests ◽  
Microstructural Investigation ◽  
X Ray

This paper focuses on the analysis of the microstructure and of the texture through the sheet thickness after temper rolling of very thin ferritic steels. The study uses EBSD and X-Ray diffraction. Comparison is made between an interstitial-free (IF) steel and of some industrial low carbon ferritic steels used after ageing. The experimental results are discussed with respect to the anisotropy of the mechanical behaviour after temper rolling during simple shear tests.

scholarly journals A New Approach on the Modelling of Isothermal Recrystallisation in Cold Rolled Ferritic Steels: An Application to Back-Annealing of Low Carbon Sheet Steels

2008 ◽  
Vol 49 (10) ◽  
pp. 2292-2297 ◽  
Author(s):  
T. De Cock ◽  
C. Capdevila ◽  
F. G. Caballero ◽  
C. García de Andrés
Keyword(s):  
Ferritic Steels ◽  
Low Carbon ◽  
New Approach ◽  
Sheet Steels ◽  
Carbon Sheet ◽  
Cold Rolled

Low-density low-carbon Fe–Al ferritic steels

2013 ◽  
Vol 68 (6) ◽  
pp. 354-359 ◽  
Author(s):  
R. Rana ◽  
C. Liu ◽  
R.K. Ray
Keyword(s):  
Ferritic Steels ◽  
Low Density ◽  
Low Carbon
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