How The Material Properties Associated With Different Rolling Directions?

A graph of the hardness of the material versus the percentage cold work was plotted for both specimens. In both cases, it was observed that the percentage of cold work increases proportionately with an increase in the hardness of the

Thermo-mechanically affected zone (TMAZ): In this region, the material has been plastically deformed by the friction stir welding tool, and the heat from the process will also have exerted some influence on the material. In the case of aluminium, it is possible to get significant plastic strain without recrystallization in this region, and there is generally a distinct boundary between the recrystallized zone and the deformed zones of the TMAZ. In the earlier classification, these two sub-zones were treated as distinct microstructural regions. However, subsequent work on other materials has shown that aluminium behaves in a different manner to most other materials, in that it can be extensively deformed at high temperature without recrystallization. In other materials, the distinct recrystallized region (the nugget) is absent, and the whole of the TMAZ appears to be recrystallized. This is certainly true of materials which have no thermally induced phase transformation which will in itself induce recrystallization without strain, for example pure titanium, b titanium alloys, austenitic stainless steels and copper. In materials such as ferritic steels and a-b titanium alloys (e.g.Ti-6Al-4V), understanding the microstructure is made more difficult by the thermally induced phase transformation, and this can also make the HAZ/TMAZ boundary difficult to identify

This experiment was performed to observe differences in density based on the chemical makeup of an object. Pennies minted before 1982, pennies minted after 1982, and an unknown metal sample was tested to see if there were any differences in their densities. Ten pennies from each category and the metal sample were weighed using a scale to find mass and the displacement method was used to find their volumes. The masses and volumes were then used to calculate the densities of the pennies (D=m/v). The density of the pre-1982 pennies were 8.6 g/mL while the post-1982 pennies were 6.9 g/mL. The metal sample’s density was 1.7 g/mL. Following the experiment we were given the real densities of each item to calculate the percent error with the formula

Density of a Solid: Set up a formula to calculate the thickness of the foil using data from your data table and also the density from the CRC Handbook of Chemistry and Physics. Then calculate the thickness.

Overall, the 1018 and 1045 steel specimens displayed similar relationships between the heat-treating procedures. The 1045 steel had a greater tensile strength in all states except for the quenched state. In general, the 1018 steel specimens were more ductile than the 1045 steel specimens in all states.

First, each metal’s description and weight was recorded. Additionally, the weights of each cylinder used was recorded. Next, a graduated cylinder was filled with 20mL of water and unknown metal II was fully submerged in the water 3 times. Each time, the volumes were recorded and the difference between the final volume and initial volume was calculated. This test was repeated for unknown metal IV.

* Calculate the density of a small, irregular metal object using the water-displacement method. Record the results in a Data table 6.

These weighed powders were mixed thoroughly and ground for 3 h using an agate mortar. Then, these ground powders were calcined at 1250 °C for 8 h. Then the calcined powders were ground again for 5 h using agate mortar and further sintered at 1400°C for 12 h. These sintered powders were ground once again for 3 h using agate mortar. The resultant powders were pressed into pellets and sintered at 1450 °C for 15 h. Then, the final sintered powders were ground again for further characterizations.

The above graph depicts the average Rockwell C Hardness achieved by each sample. This average disregards missing data or data that was noted as questionable. The graphed averages demonstrate the general trends of the different types of steels that were subjected to a heat treatment and quench media. Samples 1, 3, and 4 show a similar hardness after water quenching but differing characteristics during the other quenching types.

The steel industry is something that has been evolving and changing for the past 3 centuries in which the braced metal has been around. As we come into the modern age of mining and metal production we can find that there have been difficulties in the way of our resources are beginning to run low, mining is dangerous, we may not have enough fuel to smelt iron in the next century, and abrasive water cutters are not innovating since their introduction. In the recent wake of these events an unlikely source has been uncovered to help aid these problems and that source is the math and physics of pokemon. Pokemon is a franchise of turn based RPG games in which creatures with many crazy features fight each other for glory. Over the years pokemon has been getting crazy with what these creatures are based on and some designs and descriptions hold the key to remedying these problems with the metal industry. Currently, the metal industry, while strong, has many problems due to the shrinking of natural resources and lack of innovation. the mathematics of pokemon could lead a revolution in steel production because Excadrill design could lead to a more efficient drill, the heat given off by magmortar is enough to create a new smelting and improve process for stronger steel, and the amount of pressure that Blastoise's cannons would be forcing out can make a already good tool even better.

Based on the measurements of the metal block with both the ruler and the caliper, one can see that the ruler is slightly off by a millimeter or two, causing a slight difference in the volumes and densities of the two measurements. The short wooden block and the long wooden block resulted in the same problem in volume and density measurement as that of the metal block.

First we began by doing an inventory of the supplies in our lab drawer. We then inspected the glassware in the drawer for any cracks or chips. Next we identified

A small mixture of iron filings, sand, and sodium chloride in a penny bottle was obtained. The initial weight of the mixture was taken by setting a beaker on the scale, calibrating the scale, and then adding in the mixture from the bottle. A bar of magnet was covered with a paper towel to ensure that the iron filings would not stick to the magnet after it was used. The weight of a glass plate was measured so that additional weight from the mixture could be easily calculated. The paper towel covered magnet was moved around in beaker to collect iron filings and emptied onto the glass

After finished completing this assignment, our understanding about the Brunauer-Emmett-Teller (BET) instrument have increased. All of us able to calculate the specific surface area of the powder , knew the right standard operating procedure to run the Brunauer-Emmett-Teller (BET) instrument and more efficient in handling the calculation involving the graph . However , the specific surface area for our sample might low than the expected due to some possible error that might occur.

Brass is a binary alloy made up of copper and zinc with an additional amount of lead and tin(Brass in Focus, Angela Vessey,2004). Its density is known as 8.3 to 8.7 g/cm3, and melting point is 1652 to 1724 °F(Bell,2017). The characteristics of the brass are varied on the amount of zinc and copper. The higher amount of zinc seems to be cast easier while the lower amount of zinc can be cold worked easier; high amounts of copper allow the brass to form a patina, coating of the thin oxide