High-Carbon Steels: Atlas of Fractographs

Fractography ◽  
1987 ◽  
pp. 277-289
Keyword(s):  
Carbon Steels ◽  
High Carbon

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.

The Influence of Carbonitriding and Heat Treatment on the Properties of Low- and High-Carbon Steels

1994 ◽  
Vol 163-165 ◽  
pp. 239-246 ◽  
Author(s):  
M. Przylecka ◽  
W. Gestwa ◽  
M. Kulka
Keyword(s):  
Heat Treatment ◽  
Carbon Steels ◽  
High Carbon

Sintered High Carbon Steels: Effect of Thermomechanical Treatments on their Mechanical and Wear Performance

2008 ◽  
Vol 591-593 ◽  
pp. 271-276 ◽  
Author(s):  
M.A. Martinez ◽  
R. Calabrés ◽  
J. Abenojar ◽  
Francisco Velasco
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Powder Metallurgy ◽  
Thermomechanical Treatment ◽  
Bending Strength ◽  
Carbon Steels ◽  
Tool Steels ◽  
High Carbon ◽  
Wear Performance ◽  
Metallographic Study

In this work, ultrahigh carbon steels (UHCS) obtained by powder metallurgy with CIP and argon sintered at 1150°C. Then, they were rolled at 850 °C with a reduction of 40 %. Finally, steels were quenched at 850 and 1000 °C in oil. In each step, hardness, bending strength and wear performance were evaluated. Obtained results are justified with a metallographic study by SEM. Both mechanical properties and wear resistance are highly favoured with the thermomechanical treatment that removes the porosity of the material. Moreover, final quenching highly hardens the material. The obtained material could be used as matrix for tool steels.

scholarly journals Shape Change of Sulphide Inclusions during Hot Bar Forging and Cold Wire Drawing and Its Influence on Mechanical Properties of High Carbon Steels

1980 ◽  
Vol 66 (2) ◽  
pp. 244-252
Author(s):  
Koji KANEKO ◽  
Tsuyoshi INOUE ◽  
Hisashi TAKADA ◽  
Shushi KINOSHITA
Keyword(s):  
Mechanical Properties ◽  
Shape Change ◽  
Wire Drawing ◽  
Carbon Steels ◽  
High Carbon ◽  
Cold Wire

Fatigue Properties of Welded Joints of High-Carbon Steels

2007 ◽  
pp. 47-54
Author(s):  
Attila Magasdi ◽  
János Dobránszky ◽  
F. Tusz ◽  
János Ginsztler
Keyword(s):  
Welded Joints ◽  
Carbon Steels ◽  
Fatigue Properties ◽  
High Carbon

scholarly journals Twins or the omega phase: Which is it in high carbon steels?

2020 ◽  
Vol 186 ◽  
pp. 293-297 ◽  
Author(s):  
Gilberto Casillas ◽  
Wenwen Song ◽  
Azdiar A. Gazder
Keyword(s):  
Carbon Steels ◽  
Omega Phase ◽  
High Carbon

High-Carbon Steels from Pueblo’s Basic Oxygen Plant

JOM ◽  
1963 ◽  
Vol 15 (8) ◽  
pp. 570-572
Author(s):  
C. G. Campbell
Keyword(s):  
Carbon Steels ◽  
High Carbon ◽  
Basic Oxygen ◽  
Oxygen Plant

Morphology, Nature and Formation Mechanism of Packet Plate Martensite in Medium and High Carbon Steels

2011 ◽  
Vol 121-126 ◽  
pp. 231-238 ◽  
Author(s):  
Yue Xin Ma ◽  
Yue Jun Liu ◽  
Long Wang ◽  
De Chang Zeng ◽  
Yu Hua Tan
Keyword(s):  
Twin Boundary ◽  
Misorientation Angle ◽  
Martensite Transformation ◽  
Lath Martensite ◽  
Carbon Steels ◽  
Plate Martensite ◽  
Low Carbon ◽  
High Carbon ◽  
Boundary Misorientation ◽  
Carbon Martensite

The microstructures of 11 kinds of commercial steels quenched from high temperature were deeply studied by optical microscope and canning election microscope. It was proved that packet martensite in medium and high carbon steels is not lath martensite, but rather packet plate martensite. Through the analysis of crystallography，it was found that four change rules of crystal orientation may arise during the process of martensite transformation. Two inner interfaces spontaneously formed were only discovered in martensite transformation process: small-angel boundary (misorientation angle is 0 ~ 10º) and twin boundary (misorientation angle is 70º32’). The former mainly appeared in low carbon martensite, and the latter principally formed in medium and high carbon martensite. The twin boundary packet mechanism in medium and high carbon steels has made in detail in this paper.

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