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Paper Information

Journal:   INTERNATIONAL JOURNAL OF IRON AND STEEL SOCIETY OF IRAN   2010 , Volume 7 , Number 1; Page(s) 17 To 20.
 
Paper: 

INFLUENCE OF AGING TEMPERATURE ON MECHANICAL PROPERTIES AND SOUND VELOCITY IN MARAGING STEEL M350

 
 
Author(s):  BEHJATI P.*, NAJAFIZADEH A., VAHID DASTJERDI H., ARAGHCHI M., MAHDAVI R.
 
* MATERIALS ENGINEERING DEPARTMENT, ISFAHAN UNIVERSITY OF TECHNOLOGY, ISFAHAN 84156-83111, IRAN
 
Abstract: 
In the present work, the influence of aging temperature on mechanical properties and sound velocity of Maraging steel M350 was investigated. For this purpose, first, samples were solution annealed at 825oC for 2 hours and then age hardened at 510oC-600oC for 3 hours. Hardness, tensile and impact tests were used for determining mechanical properties and longitudinal ultrasonic velocity was used for determining sound velocity of the samples. The obtained results indicated that hardness, strength and sound velocity of the samples decreases with increase of ageing temperature, whereas, toughness of the samples increases directly with ageing temperature. These results were attributed to the dissolution of Ni3 (Mo, Ti) and Fe2Mo precipitates and also to the formation of reverted austenite which are promoted by the increase of ageing temperature. Optical microscopy of the samples revealed that, in this case, the morphology of reverted austenite is mainly of grain boundary and interlath type. Further, a linear correlation between the mechanical properties and sound velocity of the samples was found that can be used in industrial applications.
 
Keyword(s): MARAGING STEEL, AGEING, REVERTED AUSTENITE, SOUND VELOCITY
 
 
References: 
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APA: Copy

BEHJATI, P., & NAJAFIZADEH, A., & VAHID DASTJERDI, H., & ARAGHCHI, M., & MAHDAVI, R. (2010). INFLUENCE OF AGING TEMPERATURE ON MECHANICAL PROPERTIES AND SOUND VELOCITY IN MARAGING STEEL M350. INTERNATIONAL JOURNAL OF IRON AND STEEL SOCIETY OF IRAN, 7(1), 17-20. https://www.sid.ir/en/journal/ViewPaper.aspx?id=193845



Vancouver: Copy

BEHJATI P., NAJAFIZADEH A., VAHID DASTJERDI H., ARAGHCHI M., MAHDAVI R.. INFLUENCE OF AGING TEMPERATURE ON MECHANICAL PROPERTIES AND SOUND VELOCITY IN MARAGING STEEL M350. INTERNATIONAL JOURNAL OF IRON AND STEEL SOCIETY OF IRAN. 2010 [cited 2021July27];7(1):17-20. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=193845



IEEE: Copy

BEHJATI, P., NAJAFIZADEH, A., VAHID DASTJERDI, H., ARAGHCHI, M., MAHDAVI, R., 2010. INFLUENCE OF AGING TEMPERATURE ON MECHANICAL PROPERTIES AND SOUND VELOCITY IN MARAGING STEEL M350. INTERNATIONAL JOURNAL OF IRON AND STEEL SOCIETY OF IRAN, [online] 7(1), pp.17-20. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=193845.



 
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