Cover Image

Estimation of fracture toughness (K-IC) using Charpy impact test for Al6061T6 and Al7075T6 alloys subjected to corrosion

Fracture Toughness (KIC) is an important material property in fracture mechanics. There are numerous literatures that suggest the use of relationship between the fracture toughness (KIC) and impact strength (CVN). In this investigation, the relationship between KIC and CVN was used to determine the...

Full description

Saved in:
Bibliographic Details
Main Authors: Kumar, S. Sunil, Londe, Neelakantha, Kumar, K. Dilip, Kittur, Mohammed Ibrahim
Format: Article
Published: Elsevier 2021
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.um.edu.my/35402/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.um.eprints.35402
record_format eprints
spelling my.um.eprints.354022022-10-19T07:48:58Z http://eprints.um.edu.my/35402/ Estimation of fracture toughness (K-IC) using Charpy impact test for Al6061T6 and Al7075T6 alloys subjected to corrosion Kumar, S. Sunil Londe, Neelakantha Kumar, K. Dilip Kittur, Mohammed Ibrahim TJ Mechanical engineering and machinery Fracture Toughness (KIC) is an important material property in fracture mechanics. There are numerous literatures that suggest the use of relationship between the fracture toughness (KIC) and impact strength (CVN). In this investigation, the relationship between KIC and CVN was used to determine the fracture toughness of high strength, low density Al6061T6 and Al7075T6 aluminum alloys. Accelerated corrosion was performed on these alloys using salt spray in a closed chamber for 250 h and 500 h. Pitting corrosion followed with exfoliation corrosion was noticed after prolonged exposure time which were responsible for the deterioration of mechanical properties. The experimentation results in degradation of yield strength, tensile strength, and impact strength with increase in exposure time. The yield and the impact test results were considered to estimate fracture toughness using the relations proposed by Rolfe and Barsom, Weld Research Council (WRC) and Robert and Newton. The KIC results were validated analytically using Compact Tension (CT) and Single Edge Notched Bend (SENB) specimens. The results show that, KIC decreases with increase in exposure time for all the combinations considered. Further, it was relatively observed that Al7075T6 is more susceptible to corrosion than Al6061T6. (c) 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Smart and Sustainable Developments in Materials, Manufacturing and Energy Engineering. Elsevier 2021 Article PeerReviewed Kumar, S. Sunil and Londe, Neelakantha and Kumar, K. Dilip and Kittur, Mohammed Ibrahim (2021) Estimation of fracture toughness (K-IC) using Charpy impact test for Al6061T6 and Al7075T6 alloys subjected to corrosion. Materials Today-Proceedings, 46 (7, SI). pp. 2414-2420. ISSN 2214-7853, DOI https://doi.org/10.1016/j.matpr.2021.01.298 <https://doi.org/10.1016/j.matpr.2021.01.298>. 10.1016/j.matpr.2021.01.298
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Kumar, S. Sunil
Londe, Neelakantha
Kumar, K. Dilip
Kittur, Mohammed Ibrahim
Estimation of fracture toughness (K-IC) using Charpy impact test for Al6061T6 and Al7075T6 alloys subjected to corrosion
description Fracture Toughness (KIC) is an important material property in fracture mechanics. There are numerous literatures that suggest the use of relationship between the fracture toughness (KIC) and impact strength (CVN). In this investigation, the relationship between KIC and CVN was used to determine the fracture toughness of high strength, low density Al6061T6 and Al7075T6 aluminum alloys. Accelerated corrosion was performed on these alloys using salt spray in a closed chamber for 250 h and 500 h. Pitting corrosion followed with exfoliation corrosion was noticed after prolonged exposure time which were responsible for the deterioration of mechanical properties. The experimentation results in degradation of yield strength, tensile strength, and impact strength with increase in exposure time. The yield and the impact test results were considered to estimate fracture toughness using the relations proposed by Rolfe and Barsom, Weld Research Council (WRC) and Robert and Newton. The KIC results were validated analytically using Compact Tension (CT) and Single Edge Notched Bend (SENB) specimens. The results show that, KIC decreases with increase in exposure time for all the combinations considered. Further, it was relatively observed that Al7075T6 is more susceptible to corrosion than Al6061T6. (c) 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Smart and Sustainable Developments in Materials, Manufacturing and Energy Engineering.
format Article
author Kumar, S. Sunil
Londe, Neelakantha
Kumar, K. Dilip
Kittur, Mohammed Ibrahim
author_facet Kumar, S. Sunil
Londe, Neelakantha
Kumar, K. Dilip
Kittur, Mohammed Ibrahim
author_sort Kumar, S. Sunil
title Estimation of fracture toughness (K-IC) using Charpy impact test for Al6061T6 and Al7075T6 alloys subjected to corrosion
title_short Estimation of fracture toughness (K-IC) using Charpy impact test for Al6061T6 and Al7075T6 alloys subjected to corrosion
title_full Estimation of fracture toughness (K-IC) using Charpy impact test for Al6061T6 and Al7075T6 alloys subjected to corrosion
title_fullStr Estimation of fracture toughness (K-IC) using Charpy impact test for Al6061T6 and Al7075T6 alloys subjected to corrosion
title_full_unstemmed Estimation of fracture toughness (K-IC) using Charpy impact test for Al6061T6 and Al7075T6 alloys subjected to corrosion
title_sort estimation of fracture toughness (k-ic) using charpy impact test for al6061t6 and al7075t6 alloys subjected to corrosion
publisher Elsevier
publishDate 2021
url http://eprints.um.edu.my/35402/
_version_ 1748181085920952320
score 13.211869

Similar Items