mottled zone
... 麻回火法martempering 麻口区,斑口区mottled zone 麻口铸铁,斑生铁mottled pig iron ...
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碲增加冷硬铸铁白口层厚度和硬度,缩小麻口区,但降低灰口部分的机械性能。
Te also raises the thickness and hardness of the chilled layer of white cast iron, reduces the area with mottle and lowers mechanical properties of the part of gray cast iron.
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