Paper Title:
Study of Fracture Behaviors of 20g Steel under Short Period High Temperature and Thermal Shock Condition
  Abstract

The fracture properties of 20g steel used as one of boiler materials, after undergoing the heat treatment of short period high temperature and thermal shock, are investigated by evaluating their fracture toughness using the crash opening displacement (COD) and three-point bending test experiment. Meanwhile, the orthogonal test consisting of five temperature stages and four different durations of thermal shock is used to explore the relationships between fracture toughness and temperature or duration. The experimental conclusions show that thermal shock plays a more significant role on affecting the fracture properties, compared with the factor of temperature. Reducing the duration, especially at the high temperature, is useful to inhibit the decrease of fracture toughness. The ranger analysis illustrates that the lower temperature does not have the beneficial effect on the fracture behaviors. Furthermore, the experimental results facilitate providing the valuable reference on the effective safely management of utilize boiler.

  Info
Periodical
Advanced Materials Research (Volumes 217-218)
Edited by
Zhou Mark
Pages
84-87
DOI
10.4028/www.scientific.net/AMR.217-218.84
Citation
N. C. Chen, P. He, T. Y. Chen, Y. J. Shen, "Study of Fracture Behaviors of 20g Steel under Short Period High Temperature and Thermal Shock Condition", Advanced Materials Research, Vols. 217-218, pp. 84-87, 2011
Online since
March 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: Fang Juan Qi, Jian Li, Zhi Juan Yang, Min Fang
Mechanical Behavior & Fracture
Abstract:Investigation shows that one of the failure modes of HDPE pipe is the crack slowly grows across the thick direction and leads to failure at...
1116
Authors: An Zhong Liu, Tao Wang, Su Zhang
Chapter 4: Building Materials and Processing Technology
Abstract:In this paper, the test of compact tensile fatigue fracture of 16MnR steel was done after high temperature, and the relation between the...
341
Authors: Tian Fei Ma, Xin Fu Wang, Liang Zhao
Chapter 2: Composite Materials and Applications
Abstract:So far, thermal shock theories have not been well verified in refractories. This paper compared hypothesis and failure mechanism of two...
145
Authors: Sedigheh Pirsalami, Seyed Mojtaba Zebarjad, Zahra Zeinali
Abstract:The essential work of fracture (EWF) method is gaining attention for the toughness evaluation of ductile polymers. However its establishment...
7