Al-fe-alloy plated steel sheet for hot forming, having excellent twb welding characteristics, hot forming member, and manufacturing methods therefor
A technology of welding characteristics and alloying, applied in chemical instruments and methods, forming tools, welding equipment, etc., can solve the problems of increasing the corrosion resistance and defects of the removed coating, and achieve the effect of uniform hardness and excellent welding characteristics.
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[0136] Hereinafter, the present invention will be described more specifically by way of examples. However, it should be noted that the following examples are only used to illustrate the present invention for more detailed description, and are not intended to limit the scope of rights of the present invention. This is because the scope of rights of the present invention is determined by the content described in the claims and the content reasonably derived therefrom.
[0137] (Example)
[0138] A slab having the composition shown in Table 1 below was heated to 1100°C, hot finish rolled at 900°C, and coiled at 650°C. Afterwards, plating was carried out by immersing in a plating bath containing Si: 8%, Fe: 2%, the balance of Al and unavoidable impurities in % by weight, and then carried out under the conditions described in Table 2 below Batch annealing to produce Al-Fe alloyed plated steel sheets.
[0139] The Al-Fe alloyed layers of the Al-Fe alloyed coated steel sheets were...
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