Improvement in wear resistance of hyper-eutectic AlSi cast alloy by laser surface remelting

Tomida, Shogo; Nakata, Kohei; Shibata, Shuji; Zenkouji, I.; Saji, Shigeoki

doi:10.1016/s0257-8972(03)00100-2

Cited by 90 publications

(42 citation statements)

References 5 publications

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“…Fine silicone precipitations, more favorable as far as avoidance of seizing is concerned, can be obtained by means of modification of the liquid metal as well as by accelerated cooling in the alloy solidification phase. It may prove to be a particularly interesting solution to use for this purpose such unconventional technique as remelting the casting surface by means of concentrated stream of heat from a laser beam [15] or electric arc plasma [16,17]. One may expect interesting effects from plasma spraying applied to obtain a gradient coating of e.g.…”

Section: Discussionmentioning

confidence: 99%

Combustion Engine Cylinder Liners Made of Al-Si Alloys

Orłowicz¹,

Tupaj²,

Mróz³

et al. 2015

Archives of Foundry Engineering

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Section: Discussionmentioning

confidence: 99%

Combustion Engine Cylinder Liners Made of Al-Si Alloys

Orłowicz¹,

Tupaj²,

Mróz³

et al. 2015

Archives of Foundry Engineering

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“…실리콘 함 량이 증가할수록 내마모성은 증가하나 인성은 감소한다 2) . 따라서 과공정 Al-Si 합금을 알루미늄 합금에 클래 Table 4 Al and Si content at the indicated location in Fig .…”

Section: 서 론unclassified

Effects of Average Power on Laser Cladding of Hypereutectic Al-Si Alloy on Al 1050 Alloy

Lee

2011

Journal of the Korean Welding and Joining Society

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This study produced hypereutectic Al-Si clad layer on 1050 Al alloy by a novel laser cladding method. Pure Si powder was mixed with organic binder to make fluid paste which could be screen-printed on the 1050 Al alloy plate. Pulsed Nd:YAG laser was irradiated on the Si paste layer to melt and alloy with Al substrate. Different laser power of 99 W, 179 W and 261 W, was used to see the difference of the microstructure, composition and hardness of the clad layers. When laser power of 179 W was used, the clad layer had overall Si content of 38wt% and composed of fine primary Si particles and fine eutectic phase. At laser power of 261 W, the clad layer had overall Si content of 24wt% and composed of mainly fine eutectic phase. Vickers hardness of HV176.7 and HV150.3 on the clad layer was obtained at laser power of 179 W and 261 W, respectively. 연 구 논 문

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“…Common techniques used to produce functionally gradient metallic materials are, arc welding processes, laser melting, thin film coatings, powder metallurgy, hot spraying, thermal barrier coatings, etc., [3,4]. Recently, Al-Si alloys, Al-Si-SiC composite materials, Al-Si-Mg alloys, etc., are being studied for fabrication of FGM alloys by melting route because of their excellent casting and wear properties [5].…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of Functionally Gradient Al–Si Alloy Using Cast-Decant-Cast Process

Anandavel

Nazirudeen

Anburaj

et al. 2015

Trans Indian Inst Met

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A cylindrical component of functionally gradient Al alloy with high silicon in the outer and low silicon in the core was produced using cast-decant-cast (CDC) process. The preparation of the component consisted of pouring high Si-Al alloy first into a cylindrical mould, decantation of un-solidified liquid after the alloy solidified for a desired thickness against the mould walls and subsequently pouring the low Si-Al alloy at superheated temperature, so that the first alloy got partially re-melted forming a functionally gradient material (FGM) region between the two. The characteristics of FGM region like depth, size, shape and distribution of Si particles in the cross section of CDC alloy were evaluated by optical microscopy. Hardness tests and sliding pin-on-disc wear tests were carried out to compare hardness and wear resistance of outer, FGM and core regions. The micrographs of wear surfaces showed that the FGM region has better wear resistance as compared to outer and core regions as seen from the decreased delamination of wear tracks.

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Improvement in wear resistance of hyper-eutectic AlSi cast alloy by laser surface remelting

Cited by 90 publications

References 5 publications

Combustion Engine Cylinder Liners Made of Al-Si Alloys

Combustion Engine Cylinder Liners Made of Al-Si Alloys

Effects of Average Power on Laser Cladding of Hypereutectic Al-Si Alloy on Al 1050 Alloy

Development and Characterization of Functionally Gradient Al–Si Alloy Using Cast-Decant-Cast Process

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