Assessment of fatigue crack length of rail steels

2nd International conference on Advances in Mechanical Engineering

Shahwaz, M.D.^1 ; Gupta, N.^2 ; Singh, B.^3 ; Ahmad, Saif Nawaz^1 ; Priyadarshi, Neeraj^1 ; Bhoi, A.K.^4

Millia Institute of Technology, Purnea, Bihar

854301, India^1

National Institute of Foundry and Forge Technology, Ranchi, India^2

RandD Centre for Iron and Steel, SAIL, Ranchi, India^3

SMIT, Sikkim

737136, India^4

关键词: Bhilai steel Plant;    Fatigue cracks;    Fatigue properties;    Fractured surfaces;    Iron and steel;    Mode of fracture;    Physical metallurgy;    Stress raisers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/402/1/012073/pdf
DOI  :  10.1088/1757-899X/402/1/012073

来源: IOP

【 摘 要 】

This paper is to discuss the principle of fatigue crack length behaviour. The fatigue testing method was done at Physical Metallurgy Lab of Research & Development Centre for Iron and Steel (RDCIS), SAIL, Ranchi to know the utilization of fatigue properties of RAIL STEELS. Samples were produced by SAIL at Bhilai Steel Plant. In addition to the fatigue test, other tests including hardness, metallographic and EDS were also conducted. After the fatigue test, fractured surface were also observed under scanning electron microscope (SEM) to understand the mode of fracture and any stress raiser such as inclusion or other imperfection present.