Microstructure and mechanical properties of V–Ti–N microalloyed steel used for fracture splitting connecting rod

2010 ◽  
Vol 46 (6) ◽  
pp. 1789-1795 ◽  
Author(s):  
Xianzhong Zhang ◽  
Qizhou Cai ◽  
Guifeng Zhou ◽  
Qingfeng Chen ◽  
Yuzhang Xiong
Keyword(s):  
Mechanical Properties ◽  
Microalloyed Steel ◽  
Connecting Rod ◽  
Microstructure And Mechanical Properties ◽  
Fracture Splitting

scholarly journals Effects of the Nanostructured Fe-V-Nb Modificators on the Microstructure and Mechanical Properties of Si-Mn Steel

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Tiebao Wang ◽  
Chunxiang Cui ◽  
Kuo Jia ◽  
Lichen Zhao
Keyword(s):  
Mechanical Properties ◽  
Microalloyed Steel ◽  
Fracture Morphology ◽  
Rapid Quenching ◽  
Tem Analysis ◽  
Nanoscale Particles ◽  
Microstructure And Mechanical Properties ◽  
Nucleation Sites ◽  
Mn Steel ◽  
Better Than

The nanostructured Fe-V-Nb master alloy was prepared in vacuum rapid quenching furnace and then was added in the steel melts as modificators before casting. Next, the effects of the nanostructured Fe-V-Nb modificators on the microstructure and mechanical properties of the steel were studied. The results show that the grain size of the steel has been effectively refined, which is mainly because the dispersed nanoscale particles can produce more nucleation sites during the solidification of the liquid steel. Tensile properties and fracture morphology reveal that the yield strength and toughness of the steel modified by nanostructured Fe-V-Nb modificators are better than that of the microalloyed steel. TEM analysis shows that vanadium and niobium in the modificators exist in the form of (V, Nb) C which effectively increases the nucleation rate and leads to better mechanical properties of the steel.

Modifying the Microstructure and Mechanical Properties of a Microalloyed Steel developed for use in the Automotive Industry

2009 ◽  
Author(s):  
Denise Ferreira Laurito ◽  
Carlos Antonio Reis Pereira Baptista ◽  
Verônica Mara Cortez Alves de Oliveira ◽  
Antonio Jorge Abdalla
Keyword(s):  
Mechanical Properties ◽  
Automotive Industry ◽  
Microalloyed Steel ◽  
Microstructure And Mechanical Properties
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