The effect of alloying elements contained the in base steel on the intermediate layer of aluminized steel
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概要
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Properties of the aluminized coating of steel vary with (a) temperature of immersion, (b) time of immersion, (c) composition of aluminium bath, and (d) alloying elements in the base steel. Many reports have so far been published on (a), (b) and (c), but very few on (d). Very little is known, therefore, about the effect of alloying elements in base steel on the properties of coatings.This is to report on the study about the hardness, thickness and tongue structure of the intermediate layer of aluminized steel.(1) Alloy steels containing silicon or chromium; chromium and nickel; chromium and molybdenum; chromium, nickel and molybdenum; chromium, molybdenum and copper; and nickel, chromium and copper reduce the amount of intermediate layer formed at the iron-aluminium interface. The rate of growth of the intermediate layer formed on Ni-Cr-Mo steel is very small.(2) When aluminium coatings are made on alloy steel, the inner boundary of intermediate layer is flatter than that on carbon steel.(3) The hardness of intermediate layer formed on alloy steels, except SEH3 and SUS7, is Hv 600-768. The hardness of those on SEH3 and SUS7 is Hv 370 and Hv 376 respectively.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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