The 34CrNiMo6 steel could obtain high strength after quenching to a full martensitic microstructure, while the ductility and toughness can be improved by the tempering process. Popescu et al. [ 9 ] studied on the parameters of bulk tempering process on the hardenability and temperability of 34CrNiMo6 steel.
Jul 22, 2020 · Steel is the global backbone material of industrialized societies, with more than 1.8 billion tons produced per year. However, steel-containing structures decay due EFFECT OF TEMPERING TEMPERATURE ON perature. Hence, the 34CrNiMo6 steel is widely used for making the wind-turbine main shaft.7 In the actual production process, the typical heat treatment of this steel involves two stages, quenching and tempering.8 The 34CrNiMo6 steel can obtain high strength after quenching to a full martensitic microstructure, while the
EN24 round bars have good internal strength and high external strength, which makes it highly wear resistant. EN24 steel round bars offer good combination of ductility, strength and wear resistance. En24 is a very high strength alloy engineering steel. Equivalent grades of EN24 round bars. SAE/AISI 4340 34CrNiMo6 BS 817M40 IS 40NiCr4Mo3 Effect of Rare Earth Ce on the Microstructure and Huang et al. studied on strength and ductility of 34CrNiMo6 steel produced by laser solid forming (LSF) and found that the hardness of the LSF + QT (quenching-tempering) sample was 310HV, i.e., 31 HRC. Through comparison, we could indicate that the addition of rare earth Ce would reduce the hardness of 34CrNiMo6 steel to a certain extent, but the reduced hardness value
is added or not, the tensile strength of 34CrNiMo6 is very good, and the two stress-strain curves (Ce0% and Ce0.05%) both have clear upper yield points. Moreover, the ductility of the 34CrNiMo6 steel is increased when 0.05wt.% Ce is added into the 34CrNiMo6 steel. e evolution of surface hardness with the Ce content is High Strength and High Ductility of Ultrafine-Grained Interstitial-free steel (IF steel) underwent severe plastic deformation by equal-channel angular extrusion/pressing (ECAE/P) to improve its strength, and then it was annealed to achieve a good strength-ductility balance. The coarse-grained microstructure of IF steel was refined down to the submicron level after eight-pass ECAE.
Interstitial-free steel (IF steel) underwent severe plastic deformation by equal-channel angular extrusion/pressing (ECAE/P) to improve its strength, and then it was annealed to achieve a good strength-ductility balance. The coarse-grained microstructure of IF steel was refined down to the submicron level after eight-pass ECAE. The ultrafine-grained (UFG) microstructure with high Influence of Microalloying Element on the Microstructure The influence of the microalloying elements of 34CrNiMo6 steel on the microstructure and mechanical properties is investigated in this paper, especially Al and N. Then, the testing of the tensile strength, yield strength, elongation after breakage, and impact absorbing energy under the different conditions is carried out to compare the mechanical properties of materials.
In this study, 34CrNiMo6 Steel having high strength and ductility is produced by laser solid forming (LSF) with a quenching-tempering (QT) treatment. Tempering of bainite is mainly by solid phase transformation in the previous LSF layers during the LSF process. The stable microstructure of LSF consists of ferrite and fine carbides. Microstructure and Mechanical Properties of 34CrNiMo6 The results showed that 34CrNiMo6 steel was successfully repaired by this method, with no defect. Tensile tests showed that the maximum ultimate strength (UTS) was 900 MPa and could reach 91.8% of that of the substrate. The fracture mode of the tensile samples was ductile
Aug 25, 2017 · A breakthrough steel -- the Super Steel -- which has been developed by an HKU-led HK-Beijing-Taiwan team, achieves a high ductility, above the yield strength of 2 GPa. SAE 4340 Alloy Steel Round Bar 34CrNiMo6 Bar Varying the amount of alloying elements, their formation in the steel either as solute elements, or as precipitated phases, retards the movement of those dislocations that make iron so ductile and weak, and thus controls qualities such as the hardness, ductility, and tensile strength of the resulting steel. Steels strength compared to pure
Oct 22, 2015 · Raw iron is ductile and weak, but the addition of other elements such as manganese, niobium, or vanadium gives steel strength and hardness. However, it is important to remember that these additional elements also impact other properties, such as toughness and ductility. What are the different Carbon Steels and their Properties Jun 09, 2018 · Dead mild steel is a soft and ductile material and can be easily cold worked. Rivets, tubes, chains, wires, and Boilerplates can be made from dead mild steel; Low Carbon steel. Low carbon steels contain 0.15% to 0.45% of carbon. Low carbon steels will have good tensile strength and ductility.
In the past, ductility and weldability came at a cost to strength and toughness. Now, theres quenched and tempered steel, a high strength and abrasion-resistant steel that comes with enhanced fabrication qualities. Before we launch into a list of benefits and applications, lets first outline how quenched and tempered steel plate is produced.34CrNiMo6 Alloy Steel - KISCO34CrNiMo6 is a good general-purpose alloy steel that is mostly used in the manufacturing of various engineering parts. It can be heat-treated to produce lots of tensile strengths combined with resistance to shock and good ductility. It has good hardenability, which means it is fairly wear-resistant, and it provides good impact values at low temperatures.