GATE MT 2018 Q16. Which of the following categories of materials is suitable as a filler for brazing of steel sheets?
GATE MT 2018 Q16. Which of the following categories of materials is suitable as a filler for brazing of steel sheets?
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For brazing, the filler material should have lower melting point and low surface tension which is satisfied by near eutectic alloys (option B).
For brazing, the filler material should have lower melting point and low surface tension which is satisfied by near eutectic alloys (option B).
See lessCorrect answer is option B. @Arpita Samal described it best. Thank you. Some peripheral lines related to this topic: For a material to act as a filler metal for brazing of steel sheets, the material should have solidification temperature at which it avoids occurrence of stress concentration. This isRead more
Correct answer is option B. Arpita Samal described it best. Thank you.
Some peripheral lines related to this topic:
For a material to act as a filler metal for brazing of steel sheets, the material should have solidification temperature at which it avoids occurrence of stress concentration. This is satisfied by near-eutectic alloys.
See lessEutectic alloys have lower melting point then the parent elements
Eutectic alloys have lower melting point then the parent elements
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See lessBrazing is carried in between 450C - 800C, and here the base metal is not melted but the filler is melted. So filler material has to be a low melting point, low surface tension. This filler materials fill will adhere to the base metal, and it fills as capillary action. Near eutectic alloys, epoxy haRead more
Brazing is carried in between 450C – 800C, and here the base metal is not melted but the filler is melted. So filler material has to be a low melting point, low surface tension. This filler materials fill will adhere to the base metal, and it fills as capillary action.
Near eutectic alloys, epoxy has low melting points but we use metal alloys to join metals. So correct option is B
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