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040			_aUniversiti Teknologi Brunei _beng _cUTB
084			_aUTB 120 REPORT, THESIS & DISSERTATION _aRTDS 1
100	1		_aAbdul Rasyid bin Hj Hussein _eauthor.
245	1	0	_aMSc Science in Durability of Structures : _bMaraging Steel of Reduced Nickel Content / _cAbdul Rasyid bin Hj Hussein
260			_aIreland: _bQueen's University Belfast, _c© 2013.
300			_avi, 41 pages : _bPhotographs, coloured illustrations, tables, charts ; _c30 cm.
500			_aA final year project submitted to the Universiti Teknologi Brunei (UTB) in MSc in Durability of Structure in Mechanical Engineering.
500			_aAbstract Maraging steel coded K3362, with composition of Fe-8.76Ni-5.98Cu-0.26Nb-0.06Co-0.04C-0.04Cr (wt%) was investigated. Optical microscopy and scarining electron microscopy were employed to study the microstructure after austenitization at 1050 deg * C and water quenching, followed by ageing at 450 deg * C X-ray diffraction (XRD) was applied to evaluate the formation of retained or reverted austenite. Hardness and charpy impact toughness of the steel were measured. From hardness test, significant increase in hardness value was observed after the heat treatments. No austenite was detected in XRD, but copper as observed after the austenitization treatment at 1050 deg * C for 1.5 hours followed by ageing at 450 deg * C for 2 hours. The ductile-brittle transition temperature of the steel was found to be brittle before ageing and quite tough after ageing as observed at longer time of ageing.
610		4	_aUniversiti Teknologi Brunei _vProject report
650		4	_aStructures.
650		4	_aNickel steel.
650		4	_aSteel, Structural.
650		4	_aDissertations, Academic
650		4	_aThesis writing
700	1		_cProfessor _aWei Sha _esupervisor.
942			_2lc _cRTDS
998			_eReport, Thesis & Dissertation _s828658 : c. 1_UTB _xUniversiti Teknologi Brunei
999			_c21681 _d21681