| 摘要 |
The invention relates to a steel part coated with a compound consisting, over more than 90% of its thickness, of at least one Fe/Zn-based phase, the iron weight content of which is equal to 65% or higher and the Fe/Zn ratio of which is between 1.9 and 4, said compound being formed by at least one heat treatment for alloying between said steel and a precoat, said precoat consisting of a zinc alloy comprising, the contents being expressed by weight, between 0.5 and 2.5% aluminum and, optionally, one or more elements chosen from: Pb<=0.003%; Sb<=0.003%; Bi<=0.003%; 0.002%<=Si<=0.070%; La<0.05%; Ce<0.05%, the balance consisting of zinc and inevitable impurities. |
