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
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
收藏
页码:515 / 520
页数:6
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