Search results for keyword: bainitic
Metallographic diagram of 45 steel (940℃ powder boronizing for 5.5h)
Microstructure of A335 Steel (940℃ Powder Quenching 5.5h)
The microstructure of A335 steel (940℃ powder quenching 5.5h) was studied by optical microscopy and scanning electron microscope. The optical microscopy shows the microstructure of the steel was composed of martensite and bainite. The ......
20/06/2023 
1059 
Lydia
Metallographic diagram of 45 steel (after quenched and tempered by 680°C gas nitrocarburizing)
Microstructure of 45 Steel (Nitrogen and Carbon Co-permeated After Annealing at 680 °C)
45 steel is one of the most commonly used steels in industry due to its excellent mechanical properties, such as good formability, welding ability, and yield strength. To improve its fatigue durability, there......
Brief Introduction of Metallographic Structure of Upper Bainite (Upper B)
The upper bainite is a form of transformation from austenite to bainite that occurs at relatively high temperatures (~400-600°C) and involves a diffusion-controlled process rather than the nucleation process that characterizes most phase transformations. Upper bainite is usually formed between ......
Metallographic diagram of carbon-free bainite 45 steel
The microstructure of carbon-free bainitic steel, C45 steel, is composed of primary prior austenite grain and secondary ferrite laths. Ferrite laths grow in the matrix of prior austenite grain and various carbides are also present in the ferrite lath. Due to the high carbon content of C45 steel, s......
Metallographic diagram of powder metallurgy iron-based structural materials (pressed, sintered, quenched, tempered)
An Overview of Powder Metallurgy Ferrous Structures
Powder Metallurgy Ferrous Structures (PMFS) is a form of materials technology which is used to form iron-based components through various processes such as pressing, sintering, heat treatment, and tempering. The materials are able to be produced......
16CrMn metallographic diagram
Upon microscopic analysis of the 16CrMn material sample, a number of notable features were observed. The primary microstructure which was observed was an array of martensite crystals ranging in size from 0.19 mm to 1.7 mm. The martensitic crystals were evenly distributed throughout the microstruct......
Metallographic structure of 16Mn
Microstructural Characterization of 16Mn Steel
16Mn steel is a low-alloy steel which belongs to the category of steels that are commonly used in bridge applications. 16Mn steel is a carbon-manganese steel that is widely used in bridges, buildings, automotive and other structures where lighter wei......
Metallographic diagram of 20Cr (slowly cooled after carburizing at 930°C) carburizing treatment
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The microstructure of 20Cr steel after carburizing at 930℃ consists of a ferrite uniform matrix and various carbides, indicating that it has been effectively carburized. In the ferrite matrix, small size evenly distributed spherical carbides are observed. These carbides are MC-type carbides with......
Metallographic diagram of 20CrMnTi (quenched and tempered at low temperature after carburizing at 910°C)
20CrMnTi(910℃ carburizing followd by tempering and low temperature annealing) is a type of medium carbon alloy steel which is widely used for various purposes. It has good strength, ductility, fatigue resistance and hardness after heat treatment. The basic composition of the alloy include 20% Chr......
Metallographic diagram of 20CrMo (1100℃×20min water quenching)
20CrMo is a ferrous alloy used in a variety of applications. It is composed of a combination of chromium and molybdenum with a specified range of carbon. 20CrMo is typically supplied in the annealed condition and then reheated in order to increase its ductility and machinability. It is also used......
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