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Iranian Journal of Materials Science and Engineering، جلد ۱۴، شماره ۳، صفحات ۷۶-۸۵
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی EFFECTS OF MO ADDITION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF CAST MICROALLOYED STEEL
چکیده انگلیسی مقاله In industry, the cost of production is an important factor and it is preferred to use conventional and low cost procedures for producing the parts. Heat treatment cycles and alloying additions are the key factors affecting the microstructure and mechanical properties of the cast steels. In this study an attempt was made to evaluate the influence of minor Mo addition on the microstructure and mechanical properties of conventionally heat treated cast micro-alloyed steels. The results of Jominy and dilatometry tests and also microstructural examinations revealed that Mo could effectively increase the hardenability of the investigated steel and change the microstructure features of the air-cooled samples. Acicular microstructure was the consequence of increasing the hardenability in Mo-added steel. Besides, it was found that Mo could greatly affect the isothermal bainitic transformation and higher fraction of martensite after cooling (from isothermal temperature) was due to the Mo addition. The results of impact test indicated that the microstructure obtained in air-cooled Mo-added steel led to better impact toughness (28J) in comparison with the base steel (23J). Moreover, Mo-added steel possessed higher hardness (291HV), yield (524MPa) and tensile (1108MPa) strengths compared to the base one.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله h ترکمانی | h. torkamani
school of metallurgy and materials engineering, college of engineering, university of tehran, tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

h رشوند | h. rashvand
school of metallurgy and materials engineering, college of engineering, university of tehran, tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

sh رایگان | sh. raygan
school of metallurgy and materials engineering, college of engineering, university of tehran, tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

j rassizadehghani | j. rassizadehghani
school of metallurgy and materials engineering, college of engineering, university of tehran, tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

y پالیزدار | y. palizdar
at materials and energy research center, karaj, iran


c گارسیا mateo | c garcia mateo
national center for metallurgical research cenim-csic , avda gregorio del amo, 8; madrid, e-28040, spain


d سید علی نقی مارتین | d san martin
national center for metallurgical research cenim-csic , avda gregorio del amo, 8; madrid, e-28040, spain
نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-1230-1&slc_lang=en&sid=en
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/454/article-454-449909.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده گروه مهندسی مواد . مباحث ویژه
نوع مقاله منتشر شده Research paper
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