Surface modification/alloying using intense pulsed electron beam as a tool for improving the corrosion resistance of steels exposed to heavy liquid metals

被引：51

作者：

Engelko, V. ^{[1
]}

Mueller, G. ^{[4
]}

Rusanov, A. ^{[2
]}

Markov, V. ^{[3
]}

Tkachenko, K. ^{[1
]}

Weisenburger, A. ^{[4
]}

Kashtanov, A. ^{[3
]}

Chikiryaka, A. ^{[1
]}

Jianu, A. ^{[4
]}

机构：

[1] Efremov Inst Elect Apparat, St Petersburg 196641, Russia

[2] Leypunsky Inst Phys & Power Engn, Obninsk 249020, Russia

[3] CRISM PROMETEY, St Petersburg 193015, Russia

[4] Karlsruhe Inst Technol, Inst Pulsed Power & Microwave Technol, D-76344 Eggenstein Leopoldshafen, Germany

来源：

JOURNAL OF NUCLEAR MATERIALS | 2011年 / 415卷 / 03期

关键词：

LEAD-BISMUTH; TESTS; 420-600-DEGREES-C; SCALES; ALLOY; GESA; AL;

D O I：

10.1016/j.jnucmat.2011.04.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The alloying of steel surface with aluminum (Al) using Microsecond-pulsed Intense Electron Beams (MIEB-Al) was developed and optimized in order to be used for improving the corrosion resistance of the 316, 1.4970 and 191 steels, exposed to liquid Pb and Pb-Bi-eutectic. The procedure consists in two steps: (i) coating the steel surface with Al or an Al-containing alloy layer and (ii) melting the coating layer and the steel surface layer using intense pulsed electron beam. In order to cover the steel surface with an homogeneous and crack-free Al-alloyed layer, the following experimental conditions are required: Al coating thickness range 5-10 mu m, electron kinetic energy 120 key; pulse duration 30 mu s; energy density 40-45 J/cm(2); number of pulses 2-3. Using the mentioned procedure, the corrosion resistance of the 316,191 and 1.4970 steels, exposed to Pb and Pb-Bi-eutectic with different oxygen concentrations and under different temperatures, was considerably improved due to the formation of a thin alumina layer (which thickness is lower than 1 mu m for all the tested temperatures and durations) acting as an anti-corrosion barrier. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：270 / 275

页数：6

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