Metallographic behavior in the fracture of a pendant of an endless screw conveyor

Authors

Keywords:

pendant, fracture, fatigue, cracks, internal structure, screw conveyor

Abstract

This study aims to determine the internal structure in the fracture failure of   pendant of an endless screw conveyor made of AISI 4340 steel. The fractured element was visually inspected and cut into sections, close to the damaged area and the furthest from it for determining the hardness effect after the event occurred. The methodology to establish the percentage of microconstituent was established. Our results showed that the fracture failure of pendant is caused by the forming concentric circular marks with beach marks on fatigue fracture, indicating fracture by cleavage mechanism, where hardness values in the fracture zone are between 329.8 HV and in the zone farther away from the failure, the value is 326.4 HV, property reached when applying tempering heat treatment at 600 °C.

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Published

2025-06-21

How to Cite

Romero Breffe, L., & García-Torres, D. (2025). Metallographic behavior in the fracture of a pendant of an endless screw conveyor. Minería & Geología, 41(2), 213–225. Retrieved from https://revista.ismm.edu.cu/index.php/revistamg/article/view/2613

Issue

Vol. 41 No. 2 (2025): abril-junio

Section

Articles
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Copyright (c) 2025 Lisander Romero Breffe

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