Qua E.H.,National Industrialization Company |
Molod H.Y.,National Industrialization Company |
Yadav M.K.,National Industrialization Company |
Shanmugam S.,National Industrialization Company |
Seshagiri K.,National Industrialization Company
Advances in Environmental Biology | Year: 2014
Slow crack growth resistance, often estimated by the bent strip environmental stress crack resistance (ESCR) test and full notch creep test (FNCT. The FNCT is an important performance parameter for different applications of HDPE, from the blow moulding segment like bottles and containers up to the extrusion moulding segments such as high pressure gas pipes. Fractographic analysis was carried out on the fracture surfaces of the FNCT specimens of the HDPE samples to understand the deformation micromechanism of fracture due to slow crack propagation. This paper presents the study of the fractured surface of different samples with different crack resistance characteristics using optical microscope (OM) and scanning electron microscope (SEM). The experimental results showed that the increase of micro fibrous structures is directly related to an increase in full notch creep test (FNCT) failure time. © 2014 AENSI Publisher All rights reserved.