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Experimentally determined hardness profile as a function of the distance from the quenched end face of the Jominy end quench test in HV10. Measured every 1 mm indicated by marks (+). A and B indicate the respective test area of different specimens.
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In this study, the influence of thermal treatments on the properties of the martensitic
stainless steel X30Cr13 (EN 10088-3: 1.4028) were investigated. These steels are characterized by a high hardness as well as corrosion resistance and can be specifically adjusted by heat treatment. In particular, the austenitizing temperature JA and cooling rate...
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Y2O3 doped ZrO2 (YSZ) ceramic material is used to protect alloy components worked in high-temperature. But its phase transformation between tetragonal phase and monoclinic phase occurred at 1150 °C leads to YSZ invalid. Therefore, enhancing the phase stability of YSZ is necessary for meeting the demands of the development of thermal barrier coating...
Citations
... The other tools are dimensioned based on the general functional scheme of the tool given in figure 7. In the work, the dimensioning of each plate of the tool will be given only in general form [6,17]. The construction of the dies, their quality, and die life are highly significant aspects of total manufacturing operations, including the quality of the parts produced [16,17,21]. ...
... In the work, the dimensioning of each plate of the tool will be given only in general form [6,17]. The construction of the dies, their quality, and die life are highly significant aspects of total manufacturing operations, including the quality of the parts produced [16,17,21]. ...
In today’s modern times, consumers have changed the idea of shopping. They want a functional product with performance at a low price. On the other hand, the consumer demands a variety of products in the market in terms of dimensions and usability. As the requirements are different, the engineers are challenged with different tasks related to the design of production systems, process design, organization and marketing. In this research, we will present some of the special materials used for knife blades manufactured worldwide. The proper selection of materials and their thickness significantly affects the production price, processing method, corrosion resistance, mass. Special emphasis in the work is devoted to the design of the knife blade for household requirements, model ARIA22, made of EN 1.4028 stainless steel material. It describes the work of the die block, blanking punch, the necessary energy parameters for the realization of the processing process with piercing and punching, as well as the profitability of the production.
... Currently, 13wt.% Cr-type martensitic stainless steel is the most used [6], but martensitic stainless steel contains a lot of carbides, so its corrosion resistance is not high [7][8][9][10]. Maraging stainless steel is a new series developed on the basis of maraging steel from the late 1960s. ...
Equipment in a long-term marine atmosphere environment is prone to corrosion failure. Natural field exposure tests usually require a long time to obtain corrosion information. This study worked out a laboratory-accelerated corrosion test method that has a strong correlation with the natural environment test in Wanning, Hainan, and can be used as the basis for life assessment and the prediction of two high-strength stainless-steel materials. The mathematical model of corrosion weight loss of two high-strength stainless steels (3Cr13 and 00Cr12Ni10MoTi) was established by a field exposure test and a laboratory-accelerated corrosion test. Then, the correlation between the field exposure test and the laboratory-accelerated corrosion test was evaluated using qualitative and quantitative methods, and the acceleration ratio was calculated using the accelerated switching factor (ASF) method. The results show that: (1) The corrosion morphology of the two stainless steels after 15 days of laboratory-accelerated corrosion testing is similar to that obtained after two years of field exposure. (2) The value of gray correlation between the laboratory-accelerated corrosion test and the field exposure test is not less than 0.75. (3) The acceleration ratio of both stainless steels increases with the corrosion test time in the laboratory. The corrosion prediction models for the two stainless steels are T3Cr13 = 6.234 t1.634 and T00Cr12Ni10MoTi = 55.693 t1.322, respectively.
