i am so not majoring in materials

good day mate! lol

so today jim's a metallographist.



lol, a pre-matured one. =P im enrolled to this supposingly 4th year/postgraduate subject here, net shape manufacturing and recently we had our first practical thingee.

due to the heck-dont-care-i-hate-materials-engineering behaviour when those oh-so-interesting lecturers in utp were teaching, i dont quite understand what them lecturers here are teaching now. i partly blame my lecturer here as well, a china-ese man who speaks aboriginal australian english with a dash of probably french in his lectures.

*gulps*

"ahmm"

"da pratikls ar uthektik due to da hreat"


australian-french-english me and ill look like this without googles. i bet you too! =P

the particles are eutectic due to the heat. lol.

okay so we had this session where we melted some 2 kg of pure aluminium and some 356 alloy with a canggih noisy machine and poured them moltens into a few moulds of different temperatures. we used an ultrasonic machine that apparently generates extremely high frequency waves to agitate the particles. the temperature went up all the way to freaking 800+ degrees weh!


cold, hot and refined

then, we cut them into pieces so that we can grind them smooth and check their grains, dendrites, etc using wah-super-geng-microscopes. lol. ill come to that later.


ugly but expensive diamond polishers.

we spent like probably 4 hours just to polish the metals sparkle. first we used 6 common sand papers of different roughness and then the 6 and 1 micrometer diamond polishers to get a mirror shine. =)


can check my hair some more. =P

yeap. diamond. those metal freaks cant help falling in love too but invent diamond polishers for their true love. =P
(no offence geh, theyre great!)


the most expensive syringe in the world, with diamond content. lol

and after huff-puff-ing the polishing process, we finally etched the metals with some acidic concoctions to see the microstructures with this BIG guy.


the microscope is not good enough they pop in an extra canon EOS series camera on its head. lol

jim's going microscope frenzy.


this one look like the spiderman octopus villain hor?


old school deep deep ocean divers.


mirco-transformers!


and this one look like hellscream. lol.

they look seriously like transformers autobots eih?

*transform transform*

and finally we get tonnes of these pictures.


yeap, err, 25x magnification with another 0.8x lens magnification.

we magnified those things all the way right up to 100x.

and yeap, finally know where them pictures in the oh-so-interesting-materials textbooks come from.

im so not interested in writing piles of report.

"ahmm"

"i ham sho not mhajowing in methiwuals"