Engineering, 19.03.2020 16:35 noobnoobnoobnoob666
The activation energy for diffusion in BCC iron is 84 kJ/mol. Which of the following explains why the carbide precipitation activation energy is slightly higher than the BCC diffusion activation energy?
a. Steel is FCC and the activation energy for FCC diffusion is higher
b. Precipitation requires the diffusional activation energy plus an additional energy to form the precipitate.
c. Precipitation requires less energy than diffusion
d. The carbide is orthorhombic which is a much higher energy than BCC
Answers: 3
Another question on Engineering
Engineering, 04.07.2019 18:10
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
Engineering, 04.07.2019 18:10
The higher the astm grain size number, the finer the gran is. a)-true b)-false
Answers: 2
Engineering, 04.07.2019 18:10
True or false (explain) (110)[111] is a slip system in bcc metals . the {111} family in fcc contains 8 planes. resolved shear stress (rss) in single crystals is just related to the applied stress. critical resolved shear stress (crss) in single crystal metals is direct proportional to the number of defects in the structure
Answers: 2
Engineering, 04.07.2019 18:20
Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options
Answers: 2
You know the right answer?
The activation energy for diffusion in BCC iron is 84 kJ/mol. Which of the following explains why th...
Questions
Physics, 13.01.2021 22:40
Mathematics, 13.01.2021 22:50
Mathematics, 13.01.2021 22:50
Mathematics, 13.01.2021 22:50
Mathematics, 13.01.2021 22:50
Mathematics, 13.01.2021 22:50
Spanish, 13.01.2021 22:50
Mathematics, 13.01.2021 22:50
Spanish, 13.01.2021 22:50
Mathematics, 13.01.2021 22:50
History, 13.01.2021 22:50
