Environmental factors in failure during structural steel hot-dip galvanizing

被引：27

作者：

Carpio, J. ^{[1
]}

Casado, J. A. ^{[1
]}

Alvarez, J. A. ^{[1
]}

Gutierrez-Solana, F. ^{[1
]}

机构：

[1] Univ Cantabria, ETS Ingn Caminos Canales & Puertos, Dept Ciencia & Ingn Terreno Mat, Santander 39005, Spain

来源：

ENGINEERING FAILURE ANALYSIS | 2009年 / 16卷 / 02期

关键词：

Galvanization; Liquid metal embrittlement; Hydrogen embrittlement; Failure mechanism; Structural steel;

D O I：

10.1016/j.engfailanal.2008.02.006

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper shows new achievements in the comprehension of failure mechanisms during structural steel hot-dip galvanizing. The problem and its evolution are explained through the microstructure and environmental factors that favour the structural steel embrittlement during galvanizing. These factors are the following: the stages prior to galvanizing process, which increase hydrogen concentration; the galvanizing temperature, 450 degrees C, which produces a decrease of mechanical properties; and the new low-melting-point elements added to the galvanizing baths, especially Sn and Bi, which can form eutectics with the traditional Pb at the steel crack tips. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：585 / 595

页数：11

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