Light interstitials in iron under extreme mechanical conditions

Addition of small amounts of light interstitial elements to iron can alter its physio-chemical characteristics to a great degree. The most crucial of these elements being carbon, overcomes many of iron deficiencies such as lack of hardenability, tensile strength and so on. It is owing to this element that iron in form of steel has become the most commonly used material in modern industry. However, not all interstitial elements have a positive impact on iron's performance, nor their presence is desirable. Due to its high diffusivity, hydrogen can travel inside iron with relative ease and interact with already formed, or forming defects such as dislocations and vacancies. It is believed that this interaction impacts the formation and evolution process of defects significantly. From macroscopic perspective, this is manifested in form of embrittlement of iron, usually referred to as hydrogen embrittlement (HE). Super-ferrite is a newly discovered phase of iron supersaturated in carbon.

Name thesis:degree_name

Doctoral

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Civil and Environmental Engineering

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2019

Author dc:creator

• Moeini Ardakani, Sina(Seyed Sina)

Advisor dc:contributor.advisor

• Ju Li and Markus Buehler.

• Civil and Environmental Engineering.

Statement dc:rights

• MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

https://hdl.handle.net/1721.1/124186

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/124186