There are two traditional methods to obtain bainitic steel: (1) Isothermal quenching method: heat the steel to a certain temperature above AC1 or AC3 for austenitizing to obtain austenite structure, and then quench it to the medium temperature zone at a cooling rate greater than the critical speed. Heat...
As shown in Figure 1, the types of bainite structure include upper bainite, lower bainite, carbide free bainite, granular bainite, quasi bainite, etc. The upper bainite is feathery and has obvious crystal trend. The carbides in the upper bainite are rod-shaped and distributed in parallel between the ferrite laths....
The chemical composition has a great influence on the mechanical properties and microstructure of bainitic Martian multiphase wear-resistant cast steel. The depressing effect of alloying elements on bainite phase transition temperature (BS) point and martensite phase transition temperature (MS) point directly affects the morphology and properties of bainite structure....
The photos of the conical crusher liner before and after use taken at the workshop site are shown in Figure 1. Figure 1A shows that the liner surface is clean and the polished part is flat and bright before assembly. From figure 1b, it can be seen that the...
Surface strengthening technology includes surface treatment, surface processing, surface coating, surface modification and thin film technology. Surface strengthening technology has the comprehensiveness of disciplines, the diversity of means, extensive functionality, potential innovation, environmental protection, strong practicability and great efficiency, so it has attracted the attention of all walks of...
The total amount of alloy of low alloy wear-resistant cast steel is less than 5%, and the total amount of alloy of medium alloy wear-resistant cast steel is less than 10%. On the basis of Si and Mn, low and medium alloy wear-resistant cast steel is superior to high...
In the three body impact abrasive wear test of the sample corroded by salt spray, the impact load is 2J, and other parameters are the same as those in the previous section. In the impact abrasive wear experiment conducted at different time points, the experimental environment may change, and...
The work hardening ability of high manganese steel depends on the size of stress. The yield strength of high manganese steel is low, it is easy to deform in use, and its wear resistance can not play a full role. In order to overcome these shortcomings, further adding alloy...
The results of three body impact abrasive wear test are shown in Figure 1. It can be seen that the wear weight loss of bainite Martian multiphase wear-resistant cast steel and mnl3cr2 changes linearly with time, the wear weight loss of bainite Martian multiphase wear-resistant cast steel decreases with...
In the wear test of iron and steel materials, the wear resistance can be obtained by taking the reciprocal of the wear amount, that is: Where, ε Is the wear resistance of the material (g-1), and F is the wear amount of the material within the specified time (g)....