چکیده مقاله
Selective laser melting SLM is an additive manufacturingtechnique currently utilized by several industries, such aspower plant industries, for its ability to produce complexnear net shaped components with minimal material waste,which also reduces the production lead time The presentarticle investigates the microstructural features, mechanicalproperties, and corrosion resistance of an additivelymanufactured stainless steel 316L Four types of sampleswere characterized: as built, annealed at 885°C HT 885 ,annealed at 1050 °C HT 1050 , and hot isostatic pressed HIP Microstructural analyses reveal the commonproperties in SLM built parts, for instance, melt pools, trackboundaries, columnar elongated grains along the buildingdirection, and epitaxially grown grains The characteristicswere eliminated in higher post treatment temperatures; somerecrystallization and annealing twins may also occur Tobetter understand the part's mechanical properties, the tensiletest was performed on the samples, which shows that yieldand ultimate tensile strength have decreased after heattreatment To achieve a better point of view about thecorrosion properties, wrought 316L, and SLM 316L beforeand after heat treatment were compared The investigationrevealed superior corrosion resistance of SLM 316Lcompared to wrought 316L, which is yet another merit of theSLM method that designers should consider when choosingthe production process
کلیدواژهها
نویسندگان
Mohsen Aliabadi
MAPNA Group, TUGA, Tehran, Iran
Mahsa Ghodsi
MAPNA Group, TUGA, Tehran, Iran
Sedigheh Hosseini
MAPNA Group, TUGA, Tehran, Iran
شیوه ارجاع
Aliabadi, Mohsen and Ghodsi, Mahsa and Hosseini, Sedigheh,1402,Investigating the effect of heat treatment on the microstructure, mechanical properties andcorrosion resistance of additively manufactured 316L,The 9th International and 20th National Conference on Manufacturing Engineering,Tehran
ارائهشده در
مجموعه مقالات بیستمین همایش ملی و نهمین کنفرانس بین المللی مهندسی ساخت و تولید ایران2 اسفند 1402 · تهران