The effect of austenitizing conditions in the ductile iron hardening process on longitudinal ultrasonic wave velocity

The paper presents results of a research on the effect of austenitizing temperature and time adopted in the hardening operation on the ultrasonic wave velocity in ductile iron. It has been found that with increasing austenitizing temperature and with the passage of the austenitizing time, a monotoni...

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Main Authors: A. W. Orłowicz, M. Tupaj
Format: Article
Language:English
Published: Croatian Metallurgical Society 2014-04-01
Series:Metalurgija
Subjects:
Online Access:http://hrcak.srce.hr/file/162241
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author A. W. Orłowicz
M. Tupaj
author_facet A. W. Orłowicz
M. Tupaj
author_sort A. W. Orłowicz
collection DOAJ
description The paper presents results of a research on the effect of austenitizing temperature and time adopted in the hardening operation on the ultrasonic wave velocity in ductile iron. It has been found that with increasing austenitizing temperature and with the passage of the austenitizing time, a monotonic decrease of the ultrasonic longitudinal wave velocity value occurred. Implementation of ultrasonic testing of results obtained in the course of the cast iron hardening process both in production and as-cast conditions, requires development of a test methodology that must take into account the influence of base material structure (degree of nodularization, graphite precipitation count) on the ultrasound wave velocity.
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spelling doaj.art-15a1d3e1209f43ff96beac4ecac8c2972022-12-22T01:26:55ZengCroatian Metallurgical SocietyMetalurgija0543-58461334-25762014-04-01532212214The effect of austenitizing conditions in the ductile iron hardening process on longitudinal ultrasonic wave velocityA. W. OrłowiczM. TupajThe paper presents results of a research on the effect of austenitizing temperature and time adopted in the hardening operation on the ultrasonic wave velocity in ductile iron. It has been found that with increasing austenitizing temperature and with the passage of the austenitizing time, a monotonic decrease of the ultrasonic longitudinal wave velocity value occurred. Implementation of ultrasonic testing of results obtained in the course of the cast iron hardening process both in production and as-cast conditions, requires development of a test methodology that must take into account the influence of base material structure (degree of nodularization, graphite precipitation count) on the ultrasound wave velocity.http://hrcak.srce.hr/file/162241ductile cast ironaustenitizing temperatureaustenitizing timehardeningultrasonic testing
spellingShingle A. W. Orłowicz
M. Tupaj
The effect of austenitizing conditions in the ductile iron hardening process on longitudinal ultrasonic wave velocity
Metalurgija
ductile cast iron
austenitizing temperature
austenitizing time
hardening
ultrasonic testing
title The effect of austenitizing conditions in the ductile iron hardening process on longitudinal ultrasonic wave velocity
title_full The effect of austenitizing conditions in the ductile iron hardening process on longitudinal ultrasonic wave velocity
title_fullStr The effect of austenitizing conditions in the ductile iron hardening process on longitudinal ultrasonic wave velocity
title_full_unstemmed The effect of austenitizing conditions in the ductile iron hardening process on longitudinal ultrasonic wave velocity
title_short The effect of austenitizing conditions in the ductile iron hardening process on longitudinal ultrasonic wave velocity
title_sort effect of austenitizing conditions in the ductile iron hardening process on longitudinal ultrasonic wave velocity
topic ductile cast iron
austenitizing temperature
austenitizing time
hardening
ultrasonic testing
url http://hrcak.srce.hr/file/162241
work_keys_str_mv AT aworłowicz theeffectofaustenitizingconditionsintheductileironhardeningprocessonlongitudinalultrasonicwavevelocity
AT mtupaj theeffectofaustenitizingconditionsintheductileironhardeningprocessonlongitudinalultrasonicwavevelocity
AT aworłowicz effectofaustenitizingconditionsintheductileironhardeningprocessonlongitudinalultrasonicwavevelocity
AT mtupaj effectofaustenitizingconditionsintheductileironhardeningprocessonlongitudinalultrasonicwavevelocity