Comparative assessment of the fracture behaviour of micro-alloyed and API-5L X65 steels in simulated fuel grade ethanol environment
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
View Archive Info| Field | Value | |
| Title |
Comparative assessment of the fracture behaviour of micro-alloyed and API-5L X65 steels in simulated fuel grade ethanol environment
|
|
| Creator |
Joseph, O O
Loto, C A Sivaprasad, S Ajayi, J A Tarafder, S |
|
| Subject |
Chemical Engineering
|
|
| Description |
In order to fully realize the benefit of pipeline and automotive materials in fuel ethanol applications, a comprehensive understanding of their fracture behaviour is essential. Very few studies have been undertaken on fracture of materials in stress corrosion environments. This paper presents a comparative assessment of the fracture toughness, tearing modulus and widths of stretch zones for API-5L X65 steel and micro-alloyed steel (MAS). The results show that MAS exhibits a better fracture resistance than API-5L X65 steel in air and in solution. API-5L X65 in solution shows a faster crack extension than MAS-in solution. It is found that Jstr (fracture toughness derived from stretch zone geometry) obtained for the two steels exhibits a similar trend with Ji (initiation fracture toughness) which is obtained at the departure of the blunting line on their J-R curves and thus suitable for representing the initiation toughness of the two steels in solution. In general, fuel ethanol reduces fracture resistance in X65 and micro-alloyed steels.
|
|
| Publisher |
Elsevier
|
|
| Date |
2018-02
|
|
| Type |
Article
PeerReviewed |
|
| Relation |
https://doi.org/10.1016/j.engfracmech.2017.08.012
http://eprints.nmlindia.org/7774/ |
|
| Identifier |
Joseph, O O and Loto, C A and Sivaprasad, S and Ajayi, J A and Tarafder, S (2018) Comparative assessment of the fracture behaviour of micro-alloyed and API-5L X65 steels in simulated fuel grade ethanol environment. Engineering Fracture Mechanics, 189 (IF-2.58). pp. 1-12.
|
|