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Riya Roy
Iron
Asked: 2021-04-04T12:16:50+05:30 In:

What is HAZ in welding?

What is HAZ in welding?
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    1. Platinum GATE Metallurgy Coaching |Providing Video Solutions and Concepts of Metallurgy since 2016 | Follow our channel, "C Patel Metallurgy" on Youtube for your GATE preparation

      HAZ will be region between weldment and parent metal where temperature reaches a significant figure which changes the phase or causes significant changes in grain size. For plain carbon steel, increase of grain size is seen in HAZ For alloyed steel, formation of martensite may be there. For aluminiuRead more

      HAZ will be region between weldment and parent metal where temperature reaches a significant figure which changes the phase or causes significant changes in grain size.

      1. For plain carbon steel, increase of grain size is seen in HAZ
      2. For alloyed steel, formation of martensite may be there.
      3. For aluminium alloy, formation of partially melted zone and grain growth is seen.
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    2. Heat Affected Zone

      Heat Affected Zone

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    3. HAZ is a near weld zone During welding process electrode and parent metal fused together they form a HAZ. HAZ have high residual stresses

      HAZ is a near weld zone During welding process electrode and parent metal fused together they form a HAZ.
      HAZ have high residual stresses

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