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_________ is a change in the microstructure of certain carbon steels and 0.5Mo steels after long-term operation in the 800 F to 1100 F range that may cause a loss in strength, ductility and/or creep resistance.
Suggested Answer: C
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28 comments · newest first
AL
Aleisha
6 months ago
But D) Sensitization could also apply. It affects strength too.
MA
Mammie
7 months ago
I’m leaning towards C) Graphitization. It relates to carbon steels.
SH
Shawnta
7 months ago
I agree, Embrittlement makes sense. Loss of ductility is key.
CA
Carrol
7 months ago
I think the answer is A) Embrittlement. It fits the description.
EL
Elke
8 months ago
Wow, I didn't know that could happen at those temps!
AV
Avery
8 months ago
Wait, are we sure it's not B) Carburization?
MI
Milly
8 months ago
Totally agree, it's A) Embrittlement for sure.
WI
Wilda
8 months ago
Haha, Graphitization? More like "Graphite-ization" am I right? *wink wink*
SY
Sylvie
8 months ago
Sensitization? Nah, that's not what this question is asking about. Gotta be Graphitization.
BA
Barabara
8 months ago
Carburization? Really? I think you need to go back to materials science 101, buddy.
SA
Sabra
9 months ago
Embrittlement sounds like the right answer here. That's what we've been dealing with in our refinery.
KA
Kathrine
9 months ago
Graphitization, definitely. I've seen this happen in my power plant.
DE
Dell
9 months ago
I remember studying about creep resistance in steels, and I think that points to A) Embrittlement. But I could be mixing it up with something else.
LI
Ling
9 months ago
I’m a bit confused. I thought sensitization was related to stainless steels. Could it be C) Graphitization instead?
JO
Jonell
9 months ago
I feel like I've seen a similar question before, and it was about graphitization. But this one seems to focus more on strength loss, so maybe it's A) Embrittlement?
HA
Hassie
10 months ago
It's definitely A) Embrittlement.
ME
Mertie
10 months ago
I thought it was C) Graphitization?
AI
Aileen
10 months ago
I think the answer might be A) Embrittlement, but I'm not entirely sure. I remember something about microstructural changes in steels.
TA
Tatum
11 months ago
I've got a good feeling about this one. The question is describing graphitization, which is the formation of graphite within the steel microstructure at high temps. I'm confident that's the right answer.
KI
Kizzy
11 months ago
Graphitization sounds like the most likely answer here. The temperature range and potential loss of strength and ductility match what I know about that phenomenon in carbon steels.
LE
Lenny
11 months ago
I'm a bit unsure about this one. The temperature range and potential loss of properties makes me think it could be related to embrittlement or graphitization, but I'll need to carefully consider each option.
MO
Monte
11 months ago
Okay, I remember learning about this in my materials science class. I think the key is to identify the specific type of microstructural change described in the question.
FR
Frank
12 months ago
Hmm, this sounds like a metallurgy question. I'll need to think about the different microstructural changes that can happen in steel at high temperatures.
LE
Leah
6 months ago
Sensitization is less likely, right?
CA
Carmela
6 months ago
Carburization seems plausible too.
IV
Ivan
9 months ago
I’m leaning towards graphitization.
TE
Teresita
10 months ago
I think it’s definitely embrittlement.
MA
Makeda
10 months ago
Yeah, embrittlement is the most common issue here.