Dr Usman Abdullah


NameDr Usman Abdullah
Job titleLecturer in Engineering
Research instituteSchool of Engineering, Technology and Design
ORCIDhttps://orcid.org/0000-0002-2625-8232

Research outputs

Experimental investigation of engine valve train friction considering effects of operating conditions and WPC surface treatment

Muhammad Usman Bhutta, Muhammad Huzaifa Najeeb, Muhammad Usman Abdullah, Samiur Rahman Shah, Muhammad Khurram, Riaz Ahmad Mufti, Kiyotaka Ogawa, Jawad Aslam, Rehan Zahid, Mian Ashfaq Ali and Muazzam Arshad 2023. Experimental investigation of engine valve train friction considering effects of operating conditions and WPC surface treatment. Materials. https://doi.org/10.3390/ma16093431

Corrosion mechanisms of 304L NAG in boiling 9M HNO3 containing Cr (VI) ions

Shagufta Khan, Adil Saeed, Mian Hammad Nazir, Muhammad Usman Abdullah and Zulfiqar Ahmad Khan 2023. Corrosion mechanisms of 304L NAG in boiling 9M HNO3 containing Cr (VI) ions. Sustainability. 15 (2), p. 916. https://doi.org/10.3390/su15020916

Further investigations and parametric analysis of microstructural alterations under rolling contact fatigue

Abdullah, U. and Khan, Z.A. 2022. Further investigations and parametric analysis of microstructural alterations under rolling contact fatigue. Materials. 15 (22), p. 8072. https://doi.org/10.3390/ma15228072

A multiscale overview of modelling rolling cyclic fatigue in bearing elements

Abdullah, U. and Khan, Z.A. 2022. A multiscale overview of modelling rolling cyclic fatigue in bearing elements. Materials. 15 (17), p. 5885. https://doi.org/10.3390/ma15175885

Friction and wear performance evaluation of bio-lubricants and DLC coatings on cam/tappet interface of internal combustion engines

Rehan Zahid, Muhammad Usman Bhutta, Riaz Ahmad Mufti, Muhammad Usman Abdullah, Haji Hassan Masjuki, Mahendra Varman, Muhammad Abul Kalam, Mian Ashfaq Ali, Jawad Aslam and Khalid Akhtar 2021. Friction and wear performance evaluation of bio-lubricants and DLC coatings on cam/tappet interface of internal combustion engines. Materials. 14 (23), p. 7206. https://doi.org/10.3390/ma14237206

Development of white etching bands under accelerated rolling contact fatigue

Muhammad U. Abdullah, Zulfiqar A. Khan, Wolfram Kruhoeffer, Toni Blass and Bernd Vierneusel 2021. Development of white etching bands under accelerated rolling contact fatigue. Tribology International. 164, p. 107240. https://doi.org/10.1016/j.triboint.2021.107240

A 3D finite element model of rolling contact fatigue for evolved material response and residual stress estimation

Muhammad U Abdullah, Zulfiqar A Khan, Wolfram Kruhoeffer and Toni Blass 2020. A 3D finite element model of rolling contact fatigue for evolved material response and residual stress estimation. Tribology Letters. 66 (122). https://doi.org/10.1007/s11249-020-01359-w

Evaluation of dark etching regions for standard bearing steel under accelerated rolling contact fatigue

Muhammad U. Abdullah, Zulfiqar A. Khan and Wolfram Kruhoeffer 2020. Evaluation of dark etching regions for standard bearing steel under accelerated rolling contact fatigue. Tribology International. 152, p. 106579. https://doi.org/10.1016/j.triboint.2020.106579

Roller sliding in engine valve train: Effect of oil film thickness considering lubricant composition

Muhammad Khurram, Riaz Ahmad Mufti, Muhammad Usman Bhutta, Naqash Afzal, Muhammad Usman Abdullah, Sami ur Rahman, Saif ur Rehman, Rehan Zahid, Khalid Mahmood, Mian Ashfaq and Muhammad Umar 2020. Roller sliding in engine valve train: Effect of oil film thickness considering lubricant composition. Tribology International. https://doi.org/https://doi.org/10.1016/j.triboint.2019.06.022

Benefits of wonder process craft on engine valve train performance

M Usman Abdullah, Samiur Rahman Shah, M Usman Bhutta, Riaz Ahmad Mufti, Muhammad Khurram, M Huzaifa Najeeb, Waseem Arshad and Kiyo Ogawa 2018. Benefits of wonder process craft on engine valve train performance. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 233 (5), pp. 1125-1135. https://doi.org/10.1177/0954407018760935

Tribological characteristics comparison of formulated palm trimethylolpropane ester and polyalphaolefin for cam/tappet interface of direct acting valve train system

Rehan Zahid, Masjuki Hj. Hassan, Abdullah Alabdulkarem, Mahendra Varman, Md Abul Kalam, Riaz Ahmad Mufti, Nurin Wahidah Mohd Zulkifli, Mubashir Gulzar, Muhammad Usman Bhutta, Mian Ashfaq Ali, Usman Abdullah and Robiah H Yunus 2018. Tribological characteristics comparison of formulated palm trimethylolpropane ester and polyalphaolefin for cam/tappet interface of direct acting valve train system. Industrial Lubrication and Tribology. https://doi.org/10.1108/ILT-06-2017-0156

Technique developed to study camshaft and tappet wear on real production engine

Waseem Arshad, Muhammad Adnan Hanif, Muhammad Usman Bhutta, Riaz Ahmad Mufti, Samiur Rahman Shah, Muhammad Usman Abdullah and Muhammad Huzaifa Najeeb 2017. Technique developed to study camshaft and tappet wear on real production engine. Industrial Lubrication and Tribology. 69 (2), pp. 174-181. https://doi.org/10.1108/ILT-06-2016-0135
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