Certainty and Uncertainty in the Abstract Section of Mechanical Engineering Research Articles

The study of epistemic modality in research articles (RAs) has been found many papers. However, the investigation abstract section RAs viewed from Systemic Functional Linguistics is rarely conducted, especially mechanical engineering RAs. Therefore, purpose this was to investigate roles A number 50 abstracts were collected Scopus Q-1 journal entitled “International Journal Machine Tools and Manufacture” period 2016-2020. data analyzed using framework focusing on markers terms orientation values. results reveal that writers tend use as objective implicit explicit only since there no subjective or data. Furthermore, findings also show apply mostly with low values instead median high These may be used improve academic writing ability writers, sections.