A Ni–Cr–Si–B alloy coating was produced on a type 304 stainless steel plate by laser cladding. A diode laser with a flat-top beam profile was used in this experiment. The effects of focused laser spot overlap on surface roughness (Ra) and Vickers hardness were investigated. Ra and the Vickers hardness of the cladding layers decreased as the overlap ratio increased. Cladding layers that maintained a hardness comparable to that of the source powder material were produced at overlap ratios of < 70%.
LollaT., SiefertJ., BabuS. S. and GandyD.: Sci. Technol. Weld. Join., 2014, 19, 476–486.
2.
OcelíkV., de OliveiraU., de BoerM. and HossonJ. Th. M.: ‘Thick Co-based coating on cast iron by side laser cladding: analysis of processing conditions and coating properties’, Surf. Coat. Technol., 2007, 201, 5875–5883.
3.
HemmatiI., OcelíkV. and De HossonJ. Th. M.: ‘Effects of the alloy composition on phase constitution and properties of laser deposited Ni–Cr–B–Si coatings’, Phys. Proc., 2013, 41, 302–311.
4.
CondeA., ZubiriF. and de DamboreneaY. J.: ‘Cladding of Ni–Cr–B–Si coatings with a high power diode laser’, Mater. Sci. Eng. A, 2002, 334, 233–238.
5.
XuG., KutsunaM., LiuZ. and YamadaK.: ‘Comparison between diode laser and TIG cladding of Co-based alloys on the SUS403 stainless steel’, Surf. Coat. Technol., 2006, 201, 1138–1144.
6.
LuoF., YaoJ., HuX. and ChaiG.: ‘Effect of laser power on the cladding temperature field and the heat affected zone’, J. Iron Steel Res. Int., 2011, 18, 73–78.
7.
YellupJ. M.: ‘Laser cladding using the powder blowing technique’, Surf. Coat. Technol., 1995, 71, 121–128.
8.
GeddaH., KaplanA. and PowellJ.: ‘Melt–solid interactions in laser cladding and laser casting’, Metall. Mater. Trans. B, 2005, 36, 683–689.
9.
SunY. and HaoM.: ‘Statistical analysis and optimization of process parameters in Ti6Al4V laser cladding using Nd:YAG laser’, Opt. Lasers Eng., 2012, 50, 985–995.
10.
TanigawaD., AbeN., TsukamotoM., HayashiY., YamazakiH., TatsumiY. and YoneyamaM.: ‘Dynamic observation of formation process in laser cladding using high speed video camera’, Proc. ICALEO2013, Miami, FL, USA, October 20136–10.
11.
LiY. and MaJ.: ‘Study on overlapping in the laser cladding process’, Surf. Coat. Technol., 1997, 90, 1–5.
12.
OcelíkV., NenadlO., PalavraA. and De HossonJ. Th. M.: ‘On the geometry of coating layers formed by overlap’, Surf. Coat. Technol., 2014, 242, 54–61.
13.
PaulC. P., JainA., GaneshP., NegiJ. and NathA. K.: ‘Laser rapid manufacturing of Colmonoy-6 components’, Opt. Lasers Eng., 2006, 44, 1096–1109.
14.
CaoX., JahaziM., FournierJ. and AlainM.: ‘Optimization of bead spacing during laser cladding of ZE41A-T5 magnesium alloy castings’, J. Mater. Process. Technol., 2008, 205, 322–331.
15.
MajumdarJ. D. and MannaI.: ‘Laser material processing’, Int. Mater. Rev., 2011, 56, 341–388.
16.
HemmatiI., OcelíkV. and De HossonJ. Th. M.: ‘Dilution effects in laser cladding of Ni–Cr–B–Si–C hardfacing alloys’, Mater. Lett., 2012, 84, 69–72.
17.
TelasangG., MajumdarJ. D., PadmanabhamG. and MannaI.: ‘Wear and corrosion behaviour of laser surface engineered AISI H13 hot working tool steel’, Surf. Coat. Technol., 2015, 261, 69–78.
18.
TelasangG., MajumdarJ. D., PadmanabhamG., TakM. and MannaI.: ‘Effect of laser parameters on microstructure and hardness of laser clad and tempered AISI H13 tool steel’, Surf. Coat. Technol., 2014, 258, 1108–1118.
19.
TelasangG., MajumdarJ. D., WasekarN., PadmanabhamG. and MannaI.: ‘Microstructure and mechanical properties of laser clad and post-cladding tempered AISI H13 tool steel’, Metall. Mater. Trans. A, 2015, 46, 2309–2321.
20.
GaoH., DuttaR. K., HuizengaR. M., AmirthalingamM., HermansM. J. M., BuslapsT. and RichardsonI. M.: ‘Pass-by-pass stress evolution in multipass welds’, Sci. Technol. Weld. Join., 2014, 19, 256–264.
21.
ShenZ., ChenY., HouJ. S. C., YangX. and GerlichA. P.: ‘Influence of processing parameters on microstructure and mechanical performance of refill friction stir spot welded 7075-T6 aluminium alloy’, Sci. Technol. Weld. Join., 2015, 20, 48–57.
22.
DindaG. P., DasguptaA. K., BhattacharyaS., NatuH., DuttaB. and MazumderJ.: ‘Microstructural characterization of laser-deposited Al 4047 alloy’, Metall. Mater. Trans. A, 2012, 44, 2233–2242.
23.
HemmatiI., OcelíkV., CsachK. and De HossonJ. Th. M.: ‘Microstructure and phase formation in a rapidly solidified laser-deposited Ni–Cr–B–Si–C hardfacing alloy’, Metall. Mater. Trans. A, 2013, 45, 878–892.