Low-cycle fatigue properties of 800 MPa-grade ultrafine-grained steel

WANG Jianguo; YANG Shengli; WANG Hongying; KANG Yonglin

doi:10.13374/j.issn1001-053x.2005.01.019

Volume 27 Issue 1

Aug. 2021

Turn off MathJax

Article Contents

Article Navigation > Chinese Journal of Engineering > 2005 > 27(1): 75-78

WANG Jianguo, YANG Shengli, WANG Hongying, KANG Yonglin. Low-cycle fatigue properties of 800 MPa-grade ultrafine-grained steel[J]. Chinese Journal of Engineering, 2005, 27(1): 75-78. doi: 10.13374/j.issn1001-053x.2005.01.019

Citation:

WANG Jianguo, YANG Shengli, WANG Hongying, KANG Yonglin. Low-cycle fatigue properties of 800 MPa-grade ultrafine-grained steel[J]. Chinese Journal of Engineering, 2005, 27(1): 75-78. doi: 10.13374/j.issn1001-053x.2005.01.019

Citation:

PDF( 753 KB)

Low-cycle fatigue properties of 800 MPa-grade ultrafine-grained steel

doi: 10.13374/j.issn1001-053x.2005.01.019

1. State Key Laboratory for Advanced Materials and Metals, University of Science and Technology Beijing, Beijing 100083, China;
2. Baoshan Iron and steel Co. Ltd, Shanghai 201900, China

Received Date: 2004-03-26
Rev Recd Date: 2004-11-09

Available Online: 2021-08-17

Abstract

Abstract

The low-cycle fatigue test of 800 MPa-grade ultrafine-grained HSLA was done. The result showed that the low-cycle fatigue cycle characteristic of the material is cyclic softening under the experimental condition and the softening velocity increases with the increasing of strain amplitude. Observations of the fatigue fractography revealed that fatigue cracks start from the material surface and distribute along the fracture border, which have multi-fatigue origins.
- ultra fine-grade steel,
- low-cycle fatigue,
- cycle characteristic,
- HSLA