Differences in Structure and Properties of the Beam Metal of the Bridge Structure

IF 0.7 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science Pub Date : 2024-08-13 DOI:10.1007/s11003-024-00833-3

H. V. Krechkovska, A. A. Voitovich, A. R. Dzyubyk, B. I. Kindratskyi, O. S. Lampitskyi, L. I. Bohun

引用次数: 0

Abstract

The mechanical properties of 15KhSND steel of the beam of the bridge structure were analyzed. The characteristics of strength, plasticity, and resistance to brittle fracture of the steel of its wall correspond to the regulated values. The values of strength and plasticity of the steel shelf do not exceed the normalized limits, but the low values of its impact strength and brittle cleavages on the sample microfractures indicate a tendency to brittle fracture. The resistance to brittle fracture of the metal from the beam shelf decreased in three times on the longitudinal samples, and two times on the transverse ones as compared to the inherent brittle fracture resistance of steel from the beam wall.

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桥梁结构横梁金属的结构和性能差异

对桥梁结构梁的 15KhSND 钢的机械性能进行了分析。梁壁钢材的强度、塑性和抗脆性断裂特性符合规定值。钢架的强度和塑性值未超过正常化限值，但其冲击强度和样品微裂纹上的脆性裂纹值较低，表明有脆性断裂的趋势。与梁壁钢材固有的脆性断裂抗力相比，梁架金属的脆性断裂抗力在纵向试样上降低了三倍，在横向试样上降低了两倍。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Science 工程技术-材料科学：综合

CiteScore

1.60

自引率

44.40%

发文量

审稿时长

4-8 weeks

期刊介绍： Materials Science reports on current research into such problems as cracking, fatigue and fracture, especially in active environments as well as corrosion and anticorrosion protection of structural metallic and polymer materials, and the development of new materials.