Two alloys, ten specimens per test
Materials science poster
A materials science poster is read composition first, so this A0 portrait example puts the weight percent line at the top of its methods protocol where a metallurgist looks for it. Two charts split the two properties: tensile results in one, hardness and the measured silicon length in the other, with the 14 percent strength gain as the key number.
The whole board
The poster at full size, exactly as it prints. Every number, citation and caption on it was written for this example, so the layout is being judged on real content.
Block by block
What each block on the board is for, in the order a reader walks it.
- Title band and authors
- The title makes the claim and its boundary in one line: strontium modification raises tensile strength by 14 percent without loss of hardness. The foundry that cast the specimens is the second affiliation.
- Abstract and introduction
- The abstract pairs every claim with its numbers: 218 to 249 MPa, 78 against 80 HB, elongation 2.1 to 4.6 percent, silicon length 18.4 to 4.1 micrometres. The introduction explains why the hardness question decides foundry practice for wear rated parts, which is the reason the study exists.
- Methods: composition first
- The first protocol entry is the composition line, Si 7.0, Mg 0.32, Fe 0.12, Sr 0.03 or none, balance Al, checked by spark spectrometry on every melt. Casting conditions, the T6 schedule, both test methods and the microstructure measurement each get one labelled entry after it.
- Tensile properties (Figure 1)
- Grouped vertical bars compare the two alloys on UTS, yield and elongation, with elongation plotted as percent times ten so it shares the MPa axis, a scaling the caption states. The pattern is the argument: ultimate strength up, yield level, elongation doubled.
- Results
- The results text carries the statistics the bars cannot: the 31 MPa difference with its interval of 22 to 40, the non significant 6 MPa yield change, and the porosity check that clears casting quality as a confounder. Standard deviations for every mean are printed with their n of ten.
- Hardness and silicon length (Figure 2)
- The second chart holds the two numbers that close the argument: hardness at 78 against 80 HB, unchanged, and eutectic silicon length cut from 18.4 to 4.1 micrometres. Reporting the microstructure as a measured length turns the mechanism into a checkable number instead of a picture.
- The key number
- The stat block prints plus 14 percent, ultimate tensile strength with 0.03 percent strontium, over the detail line of 249 against 218 MPa, n of 10 per alloy and the 95 percent interval. One number headlines; the rest of the board is its supporting evidence.
- Discussion, conclusion points and references
- The discussion explains why the gain arrives through ductility, why permanent mould results are a conservative floor for sand foundries, and that fatigue was not tested. The three references are invented for this fictional study, because the reference block is required on this layout; on your board, replace them with your sources.
- How to adapt this board
- Make your two materials the two series on both charts and keep that order identical everywhere so the colours mean the same thing all down the board. Put composition in the first protocol entry, report the microstructure as a measured quantity, and headline the one property your audience buys the material for.
What makes this board work
Two properties, two charts
Tensile results fill Figure 1 and hardness with silicon length fills Figure 2, so neither is squeezed into a corner of the other and each chart answers one question at a metre.
Composition where a reader looks
The weight percent line, Si 7.0, Mg 0.32, Fe 0.12, Sr 0.03, is the first methods entry. A metallurgist reads composition before believing any property, and this board does not make them hunt.
The mechanism is a number
Eutectic silicon length cut from 18.4 to 4.1 micrometres links the microstructure to the 31 MPa strength gain without a single micrograph, and it is a value another lab can measure and compare.
Questions people ask
What goes on a materials science poster?
Composition, processing route, the test standards, the measured properties with their scatter, the microstructure result and the comparison that motivates it all. This board runs exactly that order, and its one structural choice is splitting tensile and hardness into separate charts.
Can I show micrographs?
No poster layout has a fillable image slot, so this board reports the feature the micrograph would show as a measurement, silicon length from 18.4 down to 4.1 micrometres by line intercept, and names where the images are held. A measured length also travels between labs better than a picture.
How do I present composition without a table?
One protocol entry with the weight percent values in a single line works for five elements, which is what this board does. If your system needs a full composition table, the table led layouts carry an eight row table, but you give up this layout’s second figure to get it.
Which chart kind for tensile results?
Grouped vertical bars, one group per property and one bar per material. The figure slot accepts ten chart kinds, and bars beat lines when the x axis is categorical. This board scales elongation by ten to share the MPa axis and says so in the caption, which is the honest way to mix units.
Should I cite the test standards?
Yes, in the methods entries where each test is described, with the full citations in the reference list. This board names the tensile method, the Brinell conditions, 2.5 mm ball at 62.5 kgf, and the measurement technique for silicon length, so every number has a named procedure behind it.
How many specimens should I state?
The n for every mean, everywhere the mean appears. This board prints n of 10 per alloy in the captions, the results text and the stat detail, and the discussion says all ten came from one heat per alloy, which is the limit a materials reviewer will want acknowledged.
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