Effect of heat-input on the microstructure evaluation of carbon steel walls fabricated by wire-arc additive manufacturing(WAAM) technology
Publish Year: 1401
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
IMES16_132
تاریخ نمایه سازی: 25 اسفند 1401
Abstract:
The present investigation is conducted to fabricate three different ۴-layers walls with varyinginputs of heat using the wire-arc additive manufacturing (WAAM) process. In addition, somewalls' heat input has descended from the first layer to the top layer. The present study aimed toevaluate the effect of variable heat input of each wall/layer on the microstructure of low-carbonalloy steel (ER۷۰S-۶) produced by a relatively inexpensive additive manufacturing processusing wire feed arc welding. Microstructure studies show that reducing heat input causes ahigher solidification rate and the formation of finer columnar grains.
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Authors
Yasamin KhebrehFarshchi
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
Mahmoud Nili-ahmadabadi
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran.
Farzad Khodabakhshi
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran.
Maryam Mohri
Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf ۸۶۰۰, Switzerland