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Temperature profiles of the Jominy specimen with the cooling conditions of the (a) low height (LH), (b) standard height (SH), (c) high height (HH), and (d) comparison of temperature profiles at the center areas of the Jominy specimen with the height of water jet.
Source publication
The effects of water jet height and end dipping on cooling rate and hardenability in the Jominy end quench test were investigated to understand the Jominy test in more detail. Experimental tests were conducted under end dipping cooling condition as well as for specific water jet heights of 35, 65, and 100 mm. The thermal behavior and mechanical pro...
Context in source publication
Context 1
... 6a-c shows the temperature profiles of the Jominy specimen with the different water jet heights, i.e., 35, 65, and 100 mm, and Figure 6d compares the temperature histories at the center areas with the water jet height. All temperature profiles had a similar pattern with region regardless of the water jet height. ...
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Citations
In this paper, the progress of the test methods and characterization approaches of aluminum alloys hardenability was reviewed in detail. The test method mainly included the traditional end-quenching method and the modified method. While the characterization approaches of alloy hardenability consist mainly of ageing hardness curves, solid solution conductivity curves, ageing tensile curves, time temperature transformation (TTT) curves, time temperature properties (TTP) curves, continuous cooling transformation (CCT) curves, and advanced theoretical derivation method have appeared in recent years. The hardenability testing equipment for different tested samples with different material natures, engineering applications properties, and measurement sizes was introduced. Meanwhile, the improvement programmed proposed for shortcomings in the traditional hardenability testing process and the current deficiencies during the overall hardenability testing process were also presented. In addition, the influence factors from the view of composition design applied to the hardenability behaviors of Aluminum alloys were summarized. Among them, the combined addition of micro-alloying elements is considered to be a better method for improving the hardenability of high-strength aluminum alloys.
