scholarly journals Direct-quenched and tempered low-C high-strength structural steel: The role of chemical composition on microstructure and mechanical properties

2019 ◽  
Vol 760 ◽  
pp. 346-358 ◽  
Author(s):  
Ari Saastamoinen ◽  
Antti Kaijalainen ◽  
Tun Tun Nyo ◽  
Pasi Suikkanen ◽  
David Porter ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Chemical Composition ◽  
Structural Steel ◽  
High Strength ◽  
Microstructure And Mechanical Properties

Influence of Vanadium Microaddition on the Microstructure and Mechanical Properties of High Strength Large Diameter Wire-Rods

2005 ◽  
Vol 500-501 ◽  
pp. 761-770 ◽  
Author(s):  
L. Mendizabal ◽  
Amaia Iza-Mendia ◽  
Beatriz López ◽  
J.M. Rodriguez-Ibabe
Keyword(s):  
Mechanical Properties ◽  
Chemical Composition ◽  
Hot Rolling ◽  
Precipitation Hardening ◽  
Large Diameter ◽  
High Strength ◽  
Unit Size ◽  
Cooling Conditions ◽  
Microstructure And Mechanical Properties ◽  
Made In

This paper analyses the application of vanadium microaddition for the production of high strength 16mm diameter wire-rods. Laboratory trials, simulating industrial cooling conditions after hot rolling, were made in a range between 3 and 8°C/s. The results show that introducing vanadium means that it is possible to optimise chemical composition by reducing elements susceptible to segregation. Besides, high strength values are maintained by means of precipitation hardening. The influence of vanadium microalloying on the crystallographic ferrite unit size was also evaluated.

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