Effect of vanadium, nitrogen, and aluminium on the mechanical properties of reinforcing bar steels

Punching above its weight: life cycle energy accounting and environmental assessment of vanadium microalloying in reinforcement bar steel

“…(a) EN 1990: Structural design details; (EN 1990(EN :2002+A1, 2005 The literature reports a wide range of yield strengths as a function of different alloying elements with varying concentrations processed using different thermal transformation profiles (Deping et al, 2000;Lv et al, 2014;Sage, 1976;Shihuai et al, 2003;Yongquan et al, 1998). In order to arrive at aggregated data not specific to conditions of a single trial, yield strength dependences as a function of alloying element concentrations have been determined by considering the results of 67 different experiments mined from the literature by developing a statistical regression model (Deping et al, 2000;Lv et al, 2014;Sage, 1976;Shihuai et al, 2003).…”

“…A total of 67 steel trials varying by composition and yield strength were mined from peerreviewed publications to create a materials design space that considers (a) weight percent amounts of C, Si, Mn, V, and N in addition to (b) the bar diameter in order to correlate composition and yield strength (Deping et al, 2000;Lv et al, 2014;Sage, 1976;Shihuai et al, 2003). Prior to the SVM computation, all samples were subject to a set of metallurgical constraints in order to better curate the dataset and obtain an unambiguous evaluation of the effects of vanadium addition.…”

Punching Above its Weight: Life Cycle Energy Accounting and Environmental Assessment of Vanadium Microalloying in Reinforcement Bar Steel

“…For structural modeling the parameters for analysis are taken from and conform to the following structural design standards: The literature reports a wide range of yield strengths as a function of different alloying elements with varying concentrations processed using different thermal transformation profiles (Deping et al, 2000;Lv et al, 2014;Sage, 1976;Shihuai et al, 2003;Yongquan et al, 1998). In order to arrive at aggregated data not specific to conditions of a single trial, yield strength dependences as a function of alloying element concentrations have been determined by considering the results of 67 different experiments mined from the literature by developing a statistical regression model (Deping et al, 2000;Lv et al, 2014;Sage, 1976;Shihuai et al, 2003).…”

Barras De Refuerzo De Hormigón: Mecanismos De Endurecimiento Y Performance en Uso

“…Dependiendo de los tenores de microaleantes y de nitrógeno y carbono, a ciertas temperaturas, durante el proceso de laminación o el enfriamiento posterior al mismo, precipitan carbonitruros de niobio, vanadio o ambos, que generan un incremento de la resistencia mecánica. Los aceros microaleados comenzaron a ser adoptados para la fabricación de barras de refuerzo a fines de la década de 1960 [9]. Los mecanimos de actuación del niobio y el vanadio son diferentes.…”