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HIGH CORROSION-RESISTANT HOT DIP COATED STEEL PRODUCT EXCELLENT IN SURFACE SMOOTHNESS AND FORMABILITY, AND METHOD FOR PRODUCING HOT DIP COATED STEEL PRODUCT
HIGH CORROSION-RESISTANT HOT DIP COATED STEEL PRODUCT EXCELLENT IN SURFACE SMOOTHNESS AND FORMABILITY, AND METHOD FOR PRODUCING HOT DIP COATED STEEL PRODUCT
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机译：表面光滑度和成形性优异的高耐腐蚀热浸镀层钢产品，以及生产热浸镀层钢产品的方法
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摘要
The present invention provides a highly corrosion-resistant plated steel sheet that can achieve excellent surface smoothness and formability and, according to the process of the present invention, a hot-dip galvanized steel product excellent in surface smoothness and formability having on the steel product surface a zinc alloy plating layer composed of 4 to 22% by mass of Al, 1 to 5% by mass of Mg, 0.000001 to 0.1% by mass of Ti, 0.000001 to 0.5% by mass of Si and the balance of Zn and unavoidable impurities, the plating layer of the plated steel product having a metal structure in which an IMg2Si phase], an [Al phase], a [Zn2Mg phase] and a [Zn phase] are present in a mixture in the matrix of an [Al/Zn/Zn2Mg ternary eutectic structure], and the plating layer containing a Ti-Al base intermetallic compound in the [Al phase] and/or the [Zn2Mg phase] and/or the [Zn phase], is produced.
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