The Impact Strength Prediction within a Transition Temperatures Range
Abstract
A method of accelerated evaluation of the impact strength KCV in the brittle-ductile transition range is developed. The unified impact strength diagram for steels is ob- KCVTHBp tained. A unified linear relationship KCVt over KCVp = f KCVpHBT ( is derived within a temperature range of 77 - 473 K where the subscripts “T” and “p” correspond, respectively, to the temperature at which the impact strength is to be determined and temperature that makes the Peierls-Nabarro plastic strain mechanism not valid any more. The procedure of the impact strength determination using the unified diagram thus obtained is described. The method provides reduction of the bulk of necessary tests without any significant damage to the reliability, and in some cases even to receive information inaccessible earlier because of the limited bulk ofmaterial.
About the Authors
A. A. Baron
Волгоградский государственный технический университет
Russian Federation
Russian Federation
S. A. Kunavin
ГНЦ ОАО НПО «ЦНИИТМАШ»
Russian Federation
Russian Federation
References
1. The Use of Small-Scale Specimens for Testing Irradiated Material: ASTM STP 888, 1986. - 379 p.
2. Small Specimen Test Techniques Applied to Nuclear Reactor Vessel Thermal Annealing and Plant Life Extension: ASTM STP 1204, 1993. -462 p.
3. Small Specimen Test Techniques: ASTM STP 1329, 1998. - 626 p.
4. Small Specimen Test Techniques. Vol. 4. ASTM STP 1418, 2002. - 495 p.
5. Small Specimen Test Techniques: Vol. 5. ASTM STP 1502-2009.- 267 p.
6. Красовский А. Я., Красико В. Н. Трещиностойкость сталей магистральных трубопроводов. - Киев: Наукова думка, 1990.- 176 с.
7. Baron A. A. A Thermodynamic Model For Fracture Toughness Prediction / Eng. Fract. Mech. 1993. Vol. 46. N 2. P. 245 - 251.
8. Фрост Г. Дж., Эшби М. Ф. Карты механизмов деформации. - Челябинск: Металлургия, 1989. - 328 с.
9. Борисенко В. А. Твердость и прочность тугоплавких материалов при высоких температурах. - Киев: Наукова думка, 1984.- 212 с.
10. Baron A. A. The Generalized Diagram of Fracture Toughness for Pipeline Steels / Int. J. Press. Vessels Pip. 2012. N 98. P. 26 - 29.
11. Барон А. А., Слюсарева О. Ф. Диаграмма трещиностойкости трубных сталей / Изв. ВолгГТУ. Серия «Проблемы материаловедения, сварки и прочности в машиностроении». Вып. 6: межвуз. сб. науч. ст. 2012. № 9(96). С. 117 - 120.
Review
For citations:
Baron A.A., Kunavin S.A. The Impact Strength Prediction within a Transition Temperatures Range. Industrial laboratory. Diagnostics of materials. 2015;81(9):67-70. (In Russ.)
Views:
310
Email this article 