The corrosion resistance of hot-dipped layer with 0.3% LPC was 1.3 times as much as that without LPC while not diffused and 3 times while diffused.

• 扩散前，其耐蚀性是不加稀土渗层耐蚀性的1.；3倍，扩散后其耐蚀性是不加稀土渗层耐蚀性的3倍。