Paper Title:
A Novel Characteristic Method on Fatigue Crack Growth of N80 Casing Drilling Steel
  Abstract

Electrical parameters and low-frequency noise test were measured for N80 steel casing drilling, through extracting low-frequency parameters and combining with conventional fatigue crack growth characterization methods and analyzing their morphology. After fatigue crack growth, the results showed that: (1) Electrical parameters of N80 increase, and power spectral density of 1/f noise increases two orders of magnitude. (2) Values of γ and B are significantly increased, indicating that the process of fatigue produced more cracks, defects, and combination centers, from the mechanism of fatigue crack growth of N80, defects and cracks resulting from fatigue are the numbers of kind of fluctuations. In essence, low-frequency noise is a type of fluctuations, which show that low-frequency noise as the characterization of non-destructive., which can serve as a viable tool to study the defects and the characterization of defects.

  Info
Periodical
Advanced Materials Research (Volumes 194-196)
Edited by
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
Pages
224-227
DOI
10.4028/www.scientific.net/AMR.194-196.224
Citation
D. H. Wang, T. H. Xu, "A Novel Characteristic Method on Fatigue Crack Growth of N80 Casing Drilling Steel", Advanced Materials Research, Vols. 194-196, pp. 224-227, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Chen Xu, Herbert Danninger, Golta Khatibi, Brigitte Weiss
Abstract:Crack initiation and short crack propagation was studied on the polished notched surfaces of Cr-Mo prealloy sintered steels with 7.35 g.cm-3...
685
Authors: Hui Lan Ren, Ping Li
Abstract:The dynamic response of polycrystalline alumina were investigated in the pressure range of 0-13Gpa by planar impact experiments. Manganin...
289
Authors: Dirk Holländer, Michael Wünsche, S. Henkel, Holger Theilig
Abstract:In this paper, advanced numerical simulations of curved crack growth in the case of mul­tiple crack systems in combination with the analysis...
444
Authors: Yan Liu, Hong Zhou, Jing Yan Cheng, Lu Quan Ren
Chapter 2: Applied Mechanics and Manufacturing Technology
Abstract:This paper focuses on the influence of processing methods on the cracks’ number and form of bionic units on the vermicular cast iron. The...
350
Authors: Song Tao Kong, Ping Cai, Mei Jie Zhang, Li Jun Zhao
Chapter 3: Material Application, Green Chemistry, and Mining Engineering
Abstract:The fracture growth is one of primary causes which the refractory of ladle destroys. We have carried on the computation and the analysis to...
325