Si-containing hot-dipped aluminide coating

Thin, dense intermetallic compound

By adding Si to the Al bath, the type and distribution of intermetallic compounds are controlled to suppress brittle phase growth, yielding a denser and thinner aluminide coating for medium carbon steel protection.

Wang, Tao · Chen, Chong · Ma, Jingbo · Wei, Shizhong · Mei, Xiong · Mao, Feng · Zhang, Po · Zhang, Guoshang

Materials Characterization 2023

Specifications

when Si content

{'zh': '≥2.5', 'en': '≥2.5'} %

when Si content

{'zh': '>5', 'en': '>5'} %

when Si content

{'zh': '>7.5', 'en': '>7.5'} %

Advantages

Al5Fe2 layer thickness decreases with increasing Si content