Paper Title:
In Situ Observation on Fracture Behavior of 800MPa Grade Dual-Phase Steel
  Abstract

The tensile process of 800MPa grade dual-phase steel was observed in-situ by SEM. The initiation and propagation of crack in dual-phase steel, the initiation of micro-pores, the deformation behavior of ferrite and martensite were analyzed in this paper. The results show that the main crack goes across the soft ferrite and around the hard martensite during its propagation in the beginning. When the applied stress is small, the micro-pores are easy to form inside the ferrite grain or on the interface of ferrite and martensite. The micro-pores can also form in the fracture site of martensite with the increase of applied stress. The fracture morphology of the dual-phase steel is dimple and the formation of fracture belongs to plastic fracture.

  Info
Periodical
Advanced Materials Research (Volumes 299-300)
Edited by
Jianzhong Wang and Jingang Qi
Pages
385-389
DOI
10.4028/www.scientific.net/AMR.299-300.385
Citation
G. C. Jin, S. Y. Chen, M. Zhao, Q. C. Li, X. D. Yue, G. W. Chang, "In Situ Observation on Fracture Behavior of 800MPa Grade Dual-Phase Steel", Advanced Materials Research, Vols. 299-300, pp. 385-389, 2011
Online since
July 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: Bo Lin He, Ying Xia Yu, Er Yu Shao
Abstract:The effect of undissolved ferrite amount on impact fatigue properties and failure mechanism were studied by using 42CrMo steel with...
54
Authors: Rashid K. Abu Al-Rub, Najmul H. Abid, Mahmood Ettehad, Anthony N. Palazotto
Chapter 1: Theoretical Modeling in Damage Mechanics
Abstract:This work focuses on the application of a higher-order gradient-dependent plasticity-damage model for microstructural modeling of dual-phase...
119
Authors: Constantin Dulucheanu, Nicolai Bancescu, Traian Severin
Chapter 1: Processes of Metal Machining
Abstract:In this article, the authors have analysed the influence of quenching temperature (TQ) on the mechanical properties of a...
28