316L-30W composites were successfully fabricated via spark plasma sintering at 1550°C to evaluate their potential as the interlayer between W and 316L stainless steel in fusion reactors. The effect of holding time on the microstructure and its subsequent effects on the fracture morphology and wear properties of the composites were investigated. The results show that more W particles melted and reacted with 316L steel as the holding time increased from 1 to 5 min. The generation of voids was mainly caused by the differences in diffusivity and the coefficient of thermal expansion between W and 316L. The 316L-30W composite held for 3 min had a smaller and more stable friction coefficient, indicating that its interface was firmly bonded and homogeneous.
This paper is part of a thematic issue on Nuclear Materials.
HiraiT, EscourbiacF, Carpentier-ChouchanaS, ITER full tungsten divertor qualification program and progress. Phys Scr. 2014;T159:014006. doi: 10.1088/0031-8949/2014/T159/014006
2.
WursterS, BalucN, BattabyalM, Recent progress in R&D on tungsten alloys for divertor structural and plasma facing materials. J Nucl Mater. 2013;442(1–3):S181–S189. doi: 10.1016/j.jnucmat.2013.02.074
3.
RiethM, DudarevSL, VicenteSM, Recent progress in research on tungsten materials for nuclear fusion applications in Europe. J Nucl Mater. 2013;432:482–500. doi: 10.1016/j.jnucmat.2012.08.018
4.
MaziaszPJ, BusbyJT.Properties of austenitic steels for nuclear reactor applications. Compr Nucl Mater. 2012;2:267–283. doi: 10.1016/B978-0-08-056033-5.00019-7
5.
KalinBA, FedotovVT, SevrjukovON, Development of brazing foils to join monocrystalline tungsten alloys with ODS-EUROFER steel. J Nucl Mater. 2007;367–370:1218–1222. doi: 10.1016/j.jnucmat.2007.03.222
6.
AktaaJ, BasukiWW, WeberT, Manufacturing and joining technologies for helium cooled divertors. Fusion Eng Des. 2014;89:913–920. doi: 10.1016/j.fusengdes.2014.01.028
7.
CaiQ, LiuW, MaY, Microstructure, residual stresses and mechanical properties of diffusion bonded tungsten–steel joint using a V/Cu composite barrier interlayer. Int J Refract Met H. 2015;48:312–317. doi: 10.1016/j.ijrmhm.2014.09.002
8.
ZhongZ, HinokiT, NozawaT, Microstructure and mechanical properties of diffusion bonded joints between tungsten and F82H steel using a titanium interlayer. J Alloy Compd. 2010;489:545–551. doi: 10.1016/j.jallcom.2009.09.105
9.
JungY-I, ParkJ-Y, ChoiB-K, Fabrication of W/FMS joint mock-ups using a hot isostatic pressing. Fusion Eng Des. 2014;89:1029–1032. doi: 10.1016/j.fusengdes.2014.02.063
10.
MatejicekJ, BoldyryevaH, BrozekV, W-steel and W-WC-steel composites and FGMs produced by hot pressing. Fusion Eng Des. 2015;100:364–370. doi: 10.1016/j.fusengdes.2015.06.154
11.
AutissierE, RichouM, MinierL, Spark plasma sintering of pure and doped tungsten as plasma facing material. Phys Scr. 2014;T159:014034. doi: 10.1088/0031-8949/2014/T159/014034
12.
HiroseT, ShibaK, AndoM, Joining technologies of reduced activation ferritic/martensitic steel for blanket fabrication. Fusion Eng Des. 2006;81:645–651. doi: 10.1016/j.fusengdes.2005.07.015
13.
TanC, WangG, JiL, Investigation on 316L/W functionally graded materials fabricated by mechanical alloying and spark plasma sintering. J Nucl Mater. 2016;469:32–38. doi: 10.1016/j.jnucmat.2015.11.024
14.
TanC, WangC, WangS, Investigation on 316L/316L-50W/W plate functionally graded materials fabricated by spark plasma sintering. Fus Eng Des. 2017, Accepted.
15.
ChenH-Y, LuoL-M, ZhangJ, Investigation on W/Fe diffusion bonding using Ti foil and Ti powder interlayer by SPS. J Nucl Mater. 2015;467:566–571. doi: 10.1016/j.jnucmat.2015.10.045
16.
FigielP, ZimowskiS, KlimczykP, Mechanical and tribological properties of TiC-based composites for ED machining. Arch Mater Sci Eng. 2008;33(2):83–88.
17.
EliassonA, EkbomL, FredrikssonH.Tungsten grain separation during initial stage of liquid phase sintering. Powder Metall. 2008;51:343–349. doi: 10.1179/174329008X293732
ChenX, YanH.Solid–liquid interface dynamics during solidification of Al 7075–Al2O3np based metal matrix composites. Mater Des. 2016;94:148–158. doi: 10.1016/j.matdes.2016.01.042
20.
BindumadhavanPN, ChiaTK, ChandrasekaranM, Effect of particle-porosity clusters on tribological behavior of cast aluminum alloy A356-SiCp metal matrix composites. Mater Sci Eng A. 2001;315:217–226. doi: 10.1016/S0921-5093(00)01989-4
21.
MiracleDB.Metal matrix composites – from science to technological significance. Compos Sci Technol. 2005;65:2526–2540. doi: 10.1016/j.compscitech.2005.05.027
22.
MitraR, MahajanY.Interfaces in discontinuously reinforced metal matrix composites: an overview. Bull Mater Sci. 1995;18:405–434. doi: 10.1007/BF02749771
23.
XueC, YuJ, ZhuX.Thermal properties of diamond/SiC/Al composites with high volume fractions. Mater Des. 2011;32:4225–4229. doi: 10.1016/j.matdes.2011.04.032
24.
RezaeiA, RezaH, HosseiniM.Evolution of microstructure and mechanical properties of Al-5wt% Ti composite fabricated by P/M and hot extrusion: effect of heat treatment. Mater Sci Eng A. 2017;689:166–175. doi: 10.1016/j.msea.2017.02.049
25.
ZhangC, FuJ, LiR, Solute/impurity diffusivities in bcc Fe: a first-principles study. J Nucl Mater. 2014;455:354–359. doi: 10.1016/j.jnucmat.2014.07.011
26.
ChianehVA, HosseiniHRM, NofarM.Micro structural features and mechanical properties of Al–Al3Ti composite fabricated by in-situ powder metallurgy route. J Alloys Compd. 2009;473:127–132. doi: 10.1016/j.jallcom.2008.05.068
27.
QianD, ZhongX, YanY, Microstructures induced by excimer laser surface melting of the SiCp/Al metal matrix composite. Appl Sur Sci. 2017;412:436–446. doi: 10.1016/j.apsusc.2017.03.263
28.
ManuK, KumarS, RajanT, Effect of alumina nanoparticle on strengthening of Al-Si alloy through dendrite refinement, interfacial bonding and dislocation bowing. J Alloy Comp. 2017;712:394–405. doi: 10.1016/j.jallcom.2017.04.104
29.
GultekinD, UysalM, AslanS, The effects of applied load on the coefficient of friction in Cu-MMC brake pad/Al-SiCp MMC brake disc system. Wear. 2010;270(1–2):73–82. doi: 10.1016/j.wear.2010.09.001
