| 摘要 |
PROBLEM TO BE SOLVED: To provide an automotive member which is made from a material having adequate workability, and has superior fatigue characteristics under a wet environment. SOLUTION: The automotive member is made of a plated steel sheet having a galvanized layer formed on a base complete-non-aging steel sheet superior in workability. The base steel sheet comprises, by mass%, 0.001-0.010% C, 0.5% or less Si, 0.1-1.5% Mn, 0.10% or less P, 0.015% or less S, 0.01-0.10% sol.Al, Ti in an amount between (48/12×C+48/32×S+48/14×N) and 0.15%, 0.015% or less N, further 0.0003-0.0050% B and/or 0.01-0.08% at least one element of Nb, V and Mo, and the balance substantially Fe. The galvanized layer includes an electrolytically galvanized layer, a hot-dip galvanized layer, a galvannealed layer, a hot-dip zinc-aluminum alloy plated layer and a hot-dip zinc-aluminum-magnesium alloy plated layer. COPYRIGHT: (C)2006,JPO&NCIPI
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