0.09C-0.5Mn-0.22/1.9Si钢的高温氧化动力学

doi:10.13228/j.boyuan.issn0449-749x.20180083

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Abstract In order to evaluate the effects of Si on oxidation kinetics behavior of steels， the oxidation behaviors of Fe-0.2Si steel and Fe-2Si steel at 900-1 200 ℃ in the air-steam atmosphere were investigated by TGA in order to calculate the oxidation rates of two steels. The activation energies of the two steels were obtained. The results show that the oxidation kinetics cures of the two steels obey linear law in the early stage of oxidation process. It appeared that a critical thickness of scale existed，at which the law of the scale-growth mechanism changed from linear to parabolic. The critical thickness of scale increased with the silicon mass percent in the steel increasing and the temperature rising.

Received: 06 March 2018 Published: 11 October 2018

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	XUN Ban

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XUN Ban. Kinetics of high temperature oxidation of 0.09C-0.5Mn-0.22/1.9Si steel[J]. Iron and Steel, 2018, 53(9): 53-56.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20180083 OR http://www.chinamet.cn/Jweb_gt/EN/Y2018/V53/I9/53

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