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Iranian Journal of Materials Forming، جلد ۸، شماره ۳، صفحات ۳۴-۴۵
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عنوان انگلیسی Conjoint Influence of Heat Treatment, Hot Deformation and Cold Working on the Microstructure and Mechanical Response of a Co-Based Superalloy
چکیده انگلیسی مقاله An as-cast HAYNES 25 Co-based superalloy is subjected to a process, including four stages of heat treatment, hot deformation, cold working, and aging. Mechanical properties have been improved after processing; the hardness, tensile and yield strengths are enhanced while the reduction of ductility is reasonable. The process has led to break down the segregated as-cast microstructure and has given a well distributed inter-metallic reinforced microstructure with no segregation. The grain structure also includes the approximately equiaxed grains with a large density of Σ3 twins. The results showed that as the hot deformation plays an important role in the grain refinement and microstructure homogenization, it should be considered as an important phase of the manufacturing process.
کلیدواژه‌های انگلیسی مقاله Co superalloy, Cold working, hardness, Microstructure, Segregation
نویسندگان مقاله Seyed Mohammad Arab |
Department of Mechanical Engineering, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran

Ahmadreza Haghighi |
School of Metallurgy and Materials Engineering, University of Tehran, Tehran, Iran

Mahdi Khajepour |
Department of Materials Engineering, Shahid Bahonar University of Kerman, Kerman, Iran

Younes Jalalizadeh |
School of Metallurgy and Materials Engineering, Sahand University of Technology, Tabriz, Iran

Mohammad Mehdi Tavallaei |
Department of Electroceramics, Faculty of Materials Engineering, Shiraz University of Technology, Shiraz, Iran

نشانی اینترنتی https://ijmf.shirazu.ac.ir/article_6267_2b6e98d603435f1bb6ec698119a80272.pdf
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