Mechanical properties and machinability of a high-strength, medium-carbon, microalloyed steel

1984 ◽  
Vol 5 (4) ◽  
pp. 222-232 ◽  
Author(s):  
V. Ollilainen ◽  
H. Hurmola ◽  
H. Pöntinen
Alloy Digest ◽  
2016 ◽  
Vol 65 (2) ◽  

Abstract Induction hardened Cromax IH 482 is based on a medium carbon, microalloyed steel, which is characterized by high strength in the as-rolled condition, i.e., without heat treatment. The alloy is used for the manufacture of piston rods, pistons, and eyes for hydraulic cylinders. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance and surface qualities as well as forming, machining, and joining. Filing Code: SA-742. Producer or source: Ovako Cromax AB.


2005 ◽  
Vol 500-501 ◽  
pp. 481-488 ◽  
Author(s):  
D.Q. Bai ◽  
F. Hamad ◽  
J. Asante ◽  
S. Hansen

Among modern weldable high strength steels, low carbon microalloyed steels have been widely used for linepipe, construction, and automobile industries. One of the major technical components to successfully produce these steels is to effectively use precipitation strengthening. In the present paper, the effect of an aging treatment on the microstructure and mechanical properties of a low carbon Nb-microalloyed steel is analyzed.


2011 ◽  
Vol 528 (10-11) ◽  
pp. 3876-3882 ◽  
Author(s):  
H. Mirzadeh ◽  
J.M. Cabrera ◽  
J.M. Prado ◽  
A. Najafizadeh

2012 ◽  
Vol 531-532 ◽  
pp. 596-599
Author(s):  
Kai Zhang ◽  
Shang Wen Lu ◽  
Yao Hui Ou ◽  
Xiao Dong Wang ◽  
Ning Zhong

The recently developed “quenching and partitioning” heat treatment and “quenching-partitioning-tempering” heat treatment are novel processing technologies, which are designed for achieving advanced high strength steels (AHSS) with combination of high strength and adequate ductility. In present study, a medium carbon steel containing Nb was subjected to the Q-P-T process, and both the microstructure and mechanical properties was studied. The experimental results show that the Nb-microalloyed steel demonstrates high tensile strength and relatively high elongation. The microstructure of the steel was investigated in terms of scanning electron microscope and transmission electron microscope, and the results indicate that the Q-P-T steel consist of fine martensite laths with dispersive carbide precipitates and the film-like interlath retained austenite. The orientation relationships between martensite and retained austenite is as well-known Kurdjurmov-Sachs relationship and Nishiyama-Wasserman relationship.


2013 ◽  
Vol 313-314 ◽  
pp. 77-81
Author(s):  
M.H. Sheikh Ansari ◽  
M. Aghaie-Khafri

In this study, medium carbon low alloy steel was used to obtain bainitic structures. The lower bainite and tempered martensite-lower bainite structures were achieved by isothermal austempering and up quenching treatment, respectively. Based on the results obtained these structures showed a very good combination of strength and toughness. Furthermore, it has been shown that austenitization time and temperature, as well as austempering time and temperature play a major role in achieving ultra-high strength bainitic steels.


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