Browsing Haftirman Idrus, Dr. by Author "haftirman@unimap.edu.my"
Now showing items 1-8 of 8
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Behaviour of stress corrosion cracking of austenitic stainless steels in sodium chloride solutions
Samir Milad, Elsariti; Haftirman, Dr. (Elsevier B.V., 2013)Click Stress Corrosion Cracking (SCC) is an environmentally well-known as a failure caused by exposure to a corroding while under a sustained tensile stress. SCC is most often rapid, unpredictable. Failure can occur in a ... -
Effect of roughness of hypo-and hyper-eutectic Al-Si piston alloy on wear characteristics under lubrication
Riyadh A., Al-Samarai; Haftirman, Dr.; Khairel Rafezi, Ahmad, Dr.; Yarub, Al-Douri, Assoc. Prof. Dr. (Elsevier B.V., 2013)The tribological behavior of tow Al-Si alloys under the influence of surface roughness average was investigated for the present study. The silicon content of these alloys ranged 10 and 16-wt% Si, and includes hypoeutectic ... -
Evaluate the effects of various surface roughness on the tribological characteristics under dry and lubricated conditions for Al-Si alloy
Riyadh A., Al-Samarai; Haftirman, Dr.; Khairel Rafezi, Ahmad, Dr.; Yarub, Al-Douri, Assoc. Prof. Dr. (Scientific Research Publishing Inc. All rights reserved., 2012-07)The effect of surface roughness average of hypereutectic aluminum silicon alloys (with 16 wt% Si) on the friction and wear was investigated. Various surface roughness average (Ra) of different degrees was verified as well ... -
Fatigue crack initiation and growth of aluminum alloy with stress ratio effects
Haftirman, Idrus, Dr.; Afendi, M.; Wong, Chun Hoe (Trans Tech Publications, 2014)Fatigue crack initiation and growth of aluminum alloys with stress ratio were investigated due to it was widely used in aircraft production parts. Various types of aluminium alloy have been selected (6063-T6, 7075-T6, and ... -
Fatigue strength of FRC and FRG composite materials
Haftirman; Ahmad Syayuthi, Abdul Rahman; Teoh, Tuck Hooi (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Mekatronik, 2012-02-27)Fiber reinforced carbon (FRC) and Fiber reinforced glass (FRG) composite materials are seen to be heavily used in the aerospace industry due to its excellence mechanical properties at low density. The research presents ... -
Micro fatigue testing machine
Haftirman, Dr.; Ahmad Syayuthi, Abdul Rahman (Malaysian Invention and Design Society (MINDS), 2012-05-17) -
Stress corrosion cracking behavior of austenitic stainless steels in natrium chloride solution
Samir Milad, Elsariti; Haftirman, Dr. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)Stress corrosion cracking (SCC) of austenitic stainless steels of types 304, 310 and 316 will be investigated as a function of applied stress at room temperature in natrium chloride solutions under a constant applied ... -
Tribological properties of WS2 nanoparticles lubricants on aluminum-silicon alloy and carbon steels
Riyadh A., Al-Samarai; Yarub, Al-Douri, Assoc. Prof. Dr.; Haftirman, Dr.; Khairel Rafezi, Ahmad, Dr. (Walailak University, 2013-06)The rheological properties of nanometric tungsten disulphide (WS2) nanoparticles oil lubricants and its tribological performance with two hypereutectic Al-Si alloy and carbon steel are examined. These two oils are used to ...