Massive white points outspreading along rolling direction on the surface of Sn-Fe alloy layer was discovered after removing tin coating of tinplates offered by some steel works.

 
  • 脫去鍍錫板的自由錫層后,在錫鐵合金層的表面目視發(fā)現了大量沿軋制方向伸展的白點(diǎn),并且合金層的耐蝕性隨著(zhù)白點(diǎn)數量與覆蓋面積的增加而下降。
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