Trdota je materialna lastnost, ki opisuje odpornost materiala proti trajnemu deformiranju, ____ ali praskam. Pomembna je za oceno učinkovitosti in trajnosti materiala v različnih aplikacijah, zlasti v strojništvu.

Trdota

Quiz
•
Gregor Gojkošek
•
Other
•
1st Grade
•
Hard
7 questions
Show all answers
1.
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1 min • 1 pt
2.
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1 min • 1 pt
Trdota je materialna lastnost, ki opisuje odpornost materiala proti trajnemu deformiranju, vdoru ali ______. Pomembna je za oceno učinkovitosti in trajnosti materiala v različnih aplikacijah, zlasti v strojništvu.
3.
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1 min • 1 pt
____ je pomemben pokazatelj obrabne odpornosti materiala, saj kaže, kako dobro se material obnese pod obremenitvami in trenjem.
4.
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1 min • 1 pt
Pri Brinellovi metodi se uporabi jeklena krogla, ki se stisne v _______ pod določeno obremenitvijo. Po odstranitvi obremenitve se izmeri premer vtisa, na podlagi katerega se izračuna trdota.
5.
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1 min • 1 pt
Rockwellova metoda vključuje uporabo diamantnega penetratorja ali jeklene krogle, ki se pritisne v material pod določeno ________. Obstaja več lestvic (npr. Rockwell A, B, C), odvisno od vrste penetratorja in obremenitve.
6.
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1 min • 1 pt
Vickersova metoda uporablja kvadratni diamantni penetrator, ki se pritisne v material pod določeno obremenitvijo. Po odstranitvi obremenitve se izmeri diagonala kvadratnega vtisa, in ____ se izračuna na podlagi tega.
7.
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1 min • 1 pt
Različne metode in lestvice trdotnega preskusa omogočajo prilagajanje preskusov različnim ______ in aplikacijam ter natančno merjenje trdote.
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