Normal view MARC view ISBD view

Investigation of corrosion effects on aluminum-stainless steel weld joint / Nurul Asmida Kamaruddin

By:

Nurul Asmida Kamaruddin

Material type: Text

TextPublication details: Kuantan, Pahang : UMP, 2012Description: xvii, 81 p. : ill (some col.) ; 30 cm. + 1 CD-ROMISBN:

THE0005900(Local)

Subject(s):

Dissertation note: Project paper (Bachelor of Mechanical Engineering (Manufacturing)) -- Universiti Malaysia Pahang - 2012 Abstract: In this study, effect of changing welding parameters on microstructure, mechanical properties and corrosion rate was investigated. Aluminum alloy AA6061 joined stainless steel AISI304 with same thickness of 2 mm welded using automatic MIG welding with filler metal ER5356 where arc current and arc voltage were chosen as variable parameters. Microstructure of welded area was studied using metallurgy microscope, mechanical properties observed by Vickers hardness and corrosion rate determined in artificial corrosion test with seawater aqueous solution. Results indicated that weld metal consist Al-Si in dendritic structure and formation brittle intermetallic compound at interface aluminum alloy-stainless steel. Weld metal performed with finer microstructure and heat affected zone (HAZ) in coarse grain structure. Black surface and pitting formed after corrosion. Minimum hardness was found at fusion zone of weld metal and after corrosion hardness slightly decreased due to the pitting corrosion. Corrosion rate was determined by potentialdynamic polarization curves. Sample which has lower corrosion rate means better corrosion resistance. The optimum parameters were 93A current and 13.5V voltage.

Tags from this library: No tags from this library for this title. Log in to add tags.

Average rating: 0.0 (0 votes)

Holdings ( 2 )
Title notes ( 3 )

Holdings
Item type	Current library	Call number	Copy number	Status	Date due	Barcode
Final Year Report	UMPLIB PEKAN	TA467 .A86 2012 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000072645
Final Year Report	UMPLIB PEKAN	CD 6850 \| TA467 .A86 2012 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000072646

Project paper (Bachelor of Mechanical Engineering (Manufacturing)) -- Universiti Malaysia Pahang - 2012

Bibliography : p. 66-68

In this study, effect of changing welding parameters on microstructure, mechanical properties and corrosion rate was investigated. Aluminum alloy AA6061 joined stainless steel AISI304 with same thickness of 2 mm welded using automatic MIG welding with filler metal ER5356 where arc current and arc voltage were chosen as variable parameters. Microstructure of welded area was studied using metallurgy microscope, mechanical properties observed by Vickers hardness and corrosion rate determined in artificial corrosion test with seawater aqueous solution. Results indicated that weld metal consist Al-Si in dendritic structure and formation brittle intermetallic compound at interface aluminum alloy-stainless steel. Weld metal performed with finer microstructure and heat affected zone (HAZ) in coarse grain structure. Black surface and pitting formed after corrosion. Minimum hardness was found at fusion zone of weld metal and after corrosion hardness slightly decreased due to the pitting corrosion. Corrosion rate was determined by potentialdynamic polarization curves. Sample which has lower corrosion rate means better corrosion resistance. The optimum parameters were 93A current and 13.5V voltage.