Oxidation and Mechanical Behavior of Cr-Coated Laser Beam Welds Made from E110 Zirconium Alloy

被引：2

作者：

Kashkarov, E. B. ^{[1
]}

Gusev, K. S. ^{[1
]}

Ashikhmin, D. A. ^{[1
]}

Abdulmenova, A., V ^{[1
]}

Sidelev, D., V ^{[1
]}

机构：

[1] Tomsk Polytech Univ, Sch Nucl Sci & Engn, 30 Lenina Av, Tomsk 634050, Russia

来源：

COATINGS | 2022年 / 12卷 / 11期

基金：

俄罗斯科学基金会;

关键词：

laser beam welding; zirconium alloys; chromium coating; high-temperature oxidation; magnetron sputtering; three-point bending test; ZIRCALOY-4; CORROSION; COATINGS; STEAM;

D O I：

10.3390/coatings12111623

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article describes the oxidation resistance of laser beam welds made from E110 zirconium alloy with a chromium coating obtained using multi-cathode magnetron sputtering. Oxidation tests of the welded Zr alloy without and with Cr coating were performed in an air atmosphere at 1100 degrees C for 2-90 min. Then, analysis of their cross-section microstructure in different regions (weld, heat-affected, and bulk zones) was done using optical microscopy. Hardness measurements and three-point bending tests demonstrated the hardening of the Cr-coated welded Zr alloy after the oxidation that is discussed in the article. Brittle fracture behavior was observed for uncoated Zr weld even after a short period of high-temperature oxidation.

引用

页数：10

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