Open Access Open Access  Restricted Access Subscription or Fee Access

Measuring the effect of temperatures on the ductile brittle transition

Makhtar Alreahe, Saad Kalfalla


In this study is spotlighted on the ductile-brittle transition behavior of carbon steels when the
effect over wide range of different temperture and strain rates it. and knowlege the mechanical
properties of the steel.By breaking a notched bars, the ductile brittle transition temperature
(DBTT) is measured, it was prepared these samples by the ratio the radius of the notched and the
minimum diameter size. the ratios of carbon steels was (0.1, 0.4 and 0.8). Tests are done by a
pendulum-type impact tester for measuring the energy absorbed in the fracture over wide a range
of temperture. Also it presented an discussed the effect of the temperature rise and low on
ductile-brittle transition curve. From here, it leads to the conclusion that with the temperture low
to less than zero degree, it is the yield strength of a ferritic steel increases rapidly. And in a fairly
narrow range of temperture which locates TB, where the fracture mode becomes brittle and the
toughness descreases. This leads that to the ductile brittle transition temperature is important,
because the steel is a much greater tendency to shatter when it is cooled less than DBTT instead
of deforming or bending.


Ductile, fractures, brittle, materials, failures, polymer.

Full Text:



Callister, W. (2013). Materials Science

and Engineering (9th ed., pp. 253, 271). New

York: Wiley-Blackwell.

Ductile to brittle transitions in materials.

Retrieved November 2020,[Available from]


D.T. Read and J.W. Dally: A new method

for measuring the strength and ductility of

thin films. J. Mater. Res. 8, 1542 (1993).

Interfacial and Nanoscale Fracture, W.

Gerberich, W. Yang, in, 2003,,

Ductile-to-Brittle Transition [Available from]

ls science/ductile-to-brittle-transition.

B. Tanguy, J. Besson, R. Piques, A.

Pineau, Ductile to brittle transition of an

A508 steelcharacterized by Charpy impact

test. Part—II: modeling of the Charpy

transition curve.


W. Gerberich, W. Yang, in

Comprehensive Structural Integrity,

, Brittle-to-ductile transition.

Sokolov,M . A., and Nanstad, R . K ., "on

Impact Testing of subsize charpy V - Notch

Type Specimens, "Effects of Radiation on

Materials : 17th Volume, ASTM STP 1270,

Davids . Gelles, Randy K . Nanstad,

Arvinds.Kumar, and Edward A Little,

Editors,American Society for Testing and

Materials, Philadelphia, 1995.

Physical, thermal,and mechanical

properties of polymers,Kantesh Balani, Vivek

Verma, Arvind Agarwal, Roger Narayan. The

American ceramic society, published 2015.

Metric System,”Annual, Book of ASTM,

Standards, Vol. 14.04, No. SI10, ASTM,

International, West. Conshohocken, PA.

CHARA, S. C. and R. P. CANALE. 2010.

Krevelen, D. W. van (Dirk Willem)

Properties of polymers : their correlation with

chemical structure : their numerical

estimation and prediction from additive group

contributions / by D. W. van Krevelen. – 4th,

International Journal of Scientific Research

completely rev. ed. / K. te Nijenhuis. p. cm.

ISBN 978-0-08-054819-7.

Dr. Aniruddha moitra Material

Technology Division “Study of Ductile-

Brittle Transition Temperature of 9Cr-1Mo


B. Tanguy, J. Bensson R. Piques

A.Pineau “Ductile to Brittle Transition of an

A508 Steel Characteristics by Charpy Impact

Test Part: I Experimental Result”Engng Fract

Mech (2004) in press.


  • There are currently no refbacks.