01890ntm a2200253 a 4500 vtls000082383 KUKTEM 20251117113229.0 141027t2013 da f m 000 0 eng d THE0005903(Local) 201905141214 aida 201410271533 Fida UMP TA467 .N33 2013 r Bc. Nik Nadia Farhana Nik Zulkifli Laser surface modification of AISI 1025 steel / Nik Nadia Farhana Nik Zulkifli Kuantan, Pahang : UMP, 2013 xvi, 63 p. : ill (some col.) ; 30 cm. + 1 CD-ROM Project paper (Bachelor of Mechanical Engineering) -- Universiti Malaysia Pahang - 2013 Bibliography : p. 59-62 Low carbon steels tends to fail due to high wear applications. This project focused on laser surface modification of AISI 1023 steel to improve surface hardness properties. In this project, Nd:YAG laser JK300HPS was used to modify the surface on substrate surface. Three set parameters which of laser power, pulse duration and overlap percentage were set as respective range of 1700 to 2500 W, 0.7 to 1.0 ms and 0 to 50%. The characterization for treated samples was conducted for hardness test and metallographic study. Hardness test were carried out by using Vickers indenter with Hv0.1. Optica microscope was used to study the depth of treated sample for metallographic study. From the findings, lower speed produced higher hardness of 461 Hv 0.1. The hardness result that obtained from the study increased 300 % from the substrate region. The depth of modified layer ranged between 50 and 400 µm. These findings were important for structural material design. Corrosion and anti-corrosives Stainless steel 0 0 0 1 20000 20000 2019-09-04 0 TA467 .N33 2013 r Bc. 0000086595 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 20000 20000 2019-09-04 0 CD 8237 | TA467 .N33 2013 r Bc. 0000086596 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 5091 5097 VTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*9992