Jun 10, 2016 · Results revealed an improvement of the hot ductility of steels at increasing boron content. Ductility at 700, 900 and 1000 o C was higher than that at 800 o C, where boron microalloyed steels exhibit a region of ductility loss (hard region).
Chemical Composition Effects on the Creep of Type 316 Chemical Composition Effects on the Creep of Type 316 and 16-8-2 Stainless Steel Weld Metal A combination of B, P and Ti appears to have a beneficial effect on strength and ductility BY R. L. KLUEH AND D. P. EDMONDS ABSTRACT. Alloying additions of titani um, boron, and phosphorus are known to affect the elevated-temperature
To keep the boron effect high it is important that the Boron atoms are dissolved. For this reason stronger nitride formers like titanium are added to protect boron against nitriding. Investigations show that a small amount of boron retard the formation of pro-eutectoid ferrite films, increase grain boundary cohesion and improve the hot ductility [1,2].
Effect of Boron on the Hot Ductility Behavior of a Low Nov 01, 2013 · This research work studied the effect of boron additions (14, 33, 82, 126, and 214 ppm) on the hot ductility behavior of a low carbon advanced ultra-high strength steel. For this purpose, specimens were subjected to a hot tensile test at different temperatures [923 K, 973 K, 1023 K, 1073 K, 1173 K, and 1273 K (650 °C, 700 °C, 750 °C, 800 °C, 900 °C, and 1000 °C)] under a constant true
Effect of Boron on the Hot Ductility of Resulfurized Low Oct 05, 2015 · The hot ductility of resulfurized low-carbon free-cutting steel with boron additives is studied in the temperature range 850 1200°C with the help of a Gleeble-1500 thermomechanical simulator. The introduction of boron increases hot ductility, especially at 900 1050°C.
Feb 01, 2015 · The hot ductility of 20CrMnTi steel with x% tin, y% copper and z ppm boron (x = 0, 0.02; y = 0, 0.2; z = 0, 60) was investigated. The results show that tin and copper in 20CrMnTi steel are detrimental to its hot ductility while adding boron can eliminate the adverse effect and enhance hot ductility greatly. Tin is found to segregate to the boundaries tested by EPMA in 20CrMnTi steel
Hot Ductility Behavior of Boron Containing Microalloyed The hot ductility is measured for six different steel grades with different microalloying elements and with varying manganese contents using the hot tensile test machine with melting/solidification unit at the Department of Ferrous Metallurgy RWTH Aachen University. To identify the influence of manganese on hot ductility, tests are performed with varying the manganese content from 0.7 to 18.2
Influence of Nitrogen Content on Hot Ductility of Nb ultra-low carbon steel is higher than 900C, the effect of the precipitation behavior of Nb (C, N), BN, etc. on hot ductility is thought to be different from that in low carbon steel. In this research, the influence of the N content on the hot ductility of combined Nb-B added ultra-low carbon steel was investigated with the aim of stabilizing
Jul 18, 2013 · The effect of phosphorus at two levels (0.01 and 0.06 wt-%) on the hot ductility of 2.25Cr1Mo steel has been investigated over the temperature range 700-1200 °C using a Gleeble machine. Auger elect
The Effect of Boron on Hot Ductility of Nb-microalloyed cial to the hot ductility in this thermal region where there is no ferrite phase. Therefore, the objective of this work is to study the effect of B on the hot ductility of the Nb-contain-ing steel with particular attention to the single phase austenite region. 2. Experiments Three Effect of boron on the hot ductility of Nb-containing steelThe effect of boron on the hot ductility of 2.25Cr1Mo steel is investigated by means of a Gleeble 2000 thermomechanical simulator. There is a trough in the hot ductilitytemperature curve, which