The effect of deep cryogenic treatment on mechanical properties of 80CrMo12 5 tool steel

نویسندگان

  • A. Rezaeian Department of Materials Engineering , Isfahan University of Technology, Isfahan, Iran
  • A. Shafyei Department of Materials Engineering , Isfahan University of Technology, Isfahan, Iran
  • K. Amini Department of Materials Engineering, Science and Research Branch, Islamic Azad University (IAU), Tehran, Iran
  • S. Nategh Department of Materials Engineering, Science and Research Branch, Islamic Azad University (IAU), Tehran, Iran
چکیده مقاله:

Cryogenic treatment can be used as a supplemental treatment that is performed on some tool steels between quenching and tempering as an effective method for decreasing retained austenite and increasing wear resistance. In this research, the effect of deep cryogenic treatment (DCT) on dimensional stability and mechanical properties of 80CrMo12 5 tool steel was investigated. The martensitic transformation start and finish temperatures were also studied using dilatometry tests. The results show that the start and finish temperatures of the martensitic transformation are 254°C and - 87°C, respectively. The hardness increases (untempered) by 3 HRC after DCT. Thus, to decrease or eliminate the amount of retained austenite, cryogenic treatment is necessary. In DCT, impact energy and hardness at all tempering temperatures decreases and increases, respectively. Tempering transformations investigation using dilatometry tests, verified that the DCT increases dimensional stability. This is attributed to the transformation of retained austenite to martensite.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

the effect of deep cryogenic treatment on mechanical properties of 80crmo12 5 tool steel

cryogenic treatment can be used as a supplemental treatment that is performed on some tool steels between quenching and tempering as an effective method for decreasing retained austenite and increasing wear resistance. in this research, the effect of deep cryogenic treatment (dct) on dimensional stability and mechanical properties of 80crmo12 5 tool steel was investigated. the martensitic trans...

متن کامل

Investigating the Effect of the Deep Cryogenic Heat Treatment on the Mechanical Properties and Corrosion Behavior of 1.2080 Tool Steel

Deep cryogenic heat treatment is assumed as a supplementary heat treatment performed on steels before the final tempering treatment to enhance the wear resistance and hardness of the steels. In this study, the effects of the deep cryogenic heat treatment on the wear behavior and corrosion resistance of the 1.2080 tool steel were studied using the wear testing machine and polarization and impeda...

متن کامل

investigating the effect of the deep cryogenic heat treatment on the mechanical properties and corrosion behavior of 1.2080 tool steel

deep cryogenic heat treatment is assumed as a supplementary heat treatment performed on steels before the finaltempering treatment to enhance the wear resistance and hardness of the steels. in this study, the effects of thedeep cryogenic heat treatment on the wear behavior and corrosion resistance of the 1.2080 tool steel were studiedusing the wear testing machine and polarization and impedance...

متن کامل

Comprehensive Analysis on the Effect of Deep Cryogenic Treatment on The Mechanical Behaviour of Martensitic Valve steel

The behaviour of the cryogenically treated En52 martensitic valve steel has been experimentally analyzed in this paper. Material samples are subjected to deep cryogenic treatment after completing the regular heat treatment. The critical properties of the valve steel like wear resistance, hardness, tensile strength and impact strength are evaluated for the cryo treated En52 valve steel samples a...

متن کامل

Improvement In The Corrosion Rate And Mechanical Properties Of Low Carbon Steel Through Deep Cryogenic Treatment

Exploration of the benefit of cryotreatment for achieving improvement in corros ion rate of mild steel is a topic of current research interest. This study is concerned with the effect of deep cryogenic treatment at temperature of -193 0 C on the corrosion rate and mechanical properties. A series of corrosion rate tests have been carried out to cryotreated samples. The specimen were divided into...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


عنوان ژورنال

دوره 7  شماره 2

صفحات  12- 17

تاریخ انتشار 2010-12-01

با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023