3-D reconstruction by extended depth-of-field in failure analysis - Case study I: Qualitative fractographic investigation of fractured bolts in a partial valve

被引：8

作者：

Hein, Luis Rogerio de Oliveira ^{[1
]}

de Campos, Kamila Amato ^{[1
]}

Reis de Oliveira Caltabiano, Pietro Carelli ^{[1
]}

Horovistiz, Ana Lucia ^{[1
]}

机构：

[1] UNESP, Dept Mat & Technol, BR-12516410 Guaratingueta, SP, Brazil

来源：

ENGINEERING FAILURE ANALYSIS | 2010年 / 17卷 / 02期

基金：

巴西圣保罗研究基金会;

关键词：

Nickel-based superalloys; Fractography; Optical microscopy; Intergranular fracture; Pressurized components; BASE SUPERALLOY; MICROSCOPY;

D O I：

10.1016/j.engfailanal.2009.09.012

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Extended depth-of-field 3-D reconstruction is an image processing based technique associated to optical microscopy for qualitative or quantitative analysis of surfaces topographies. It is proposed here as a low-cost alternative to scanning electron microscopy or confocal laser scanning microscopy methods in some cases in failure analysis. A case study of fractured bolts in a partial valve from a petrochemical plant is presented in this paper to illustrate a qualitative fractographic investigation using this technique. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：515 / 520

页数：6

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