Ultrasonic Technique for Residual Stress Measurement in Ductile Iron Continuous Cast Round Bars

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Volume 20, Issue 5 (September 1992)

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ISSN: 0090-3973
Page Count: 5

Ultrasonic Technique for Residual Stress Measurement in Ductile Iron Continuous Cast Round Bars
Srinivasan, MN
Associate Professors, Texas A&M University,

Chundu, SN
Graduate Student, Texas A&M University, Texas

Bray, DE
Associate Professors, Texas A&M University,

Alagarsamy, A
Director of Research and Development, Grede Founderies, Inc., WI

(Received 6 September 1991; accepted 22 October 1991)

Abstract

An ultrasonic technique using critically refracted longitudinal (L^OR) waves was used to determine the residual stresses in ductile iron bars in the as-cast, annealed, normalized as well as quenched and tempered states. The results conform to expected trends based on differential cooling rate and phase transformation effects.

Keywords:
ductile iron, ultrasonic, longitudinal waves, residual stress, casting, cooling rate, phase transformation

Paper ID: JTE11917J
DOI: 10.1520/JTE11917J
ASTM International is a member of CrossRef.

Author Title Ultrasonic Technique for Residual Stress Measurement in Ductile Iron Continuous Cast Round Bars Symposium , 0000-00-00 Committee E07

		Home Journals STPs Manuals Topics Subscriptions/Pricing Digital Library / Journals / Journal of Testing and Evaluation (JTE) / Citation Page Volume 20, Issue 5 (September 1992) Click here to download this paper now for $25 PDF (448K) View License Agreement ISSN: 0090-3973 Page Count: 5 Ultrasonic Technique for Residual Stress Measurement in Ductile Iron Continuous Cast Round Bars Srinivasan, MN Associate Professors, Texas A&M University, Chundu, SN Graduate Student, Texas A&M University, Texas Bray, DE Associate Professors, Texas A&M University, Alagarsamy, A Director of Research and Development, Grede Founderies, Inc., WI (Received 6 September 1991; accepted 22 October 1991) Abstract An ultrasonic technique using critically refracted longitudinal (L^OR) waves was used to determine the residual stresses in ductile iron bars in the as-cast, annealed, normalized as well as quenched and tempered states. The results conform to expected trends based on differential cooling rate and phase transformation effects. Keywords: ductile iron, ultrasonic, longitudinal waves, residual stress, casting, cooling rate, phase transformation Paper ID: JTE11917J DOI: 10.1520/JTE11917J ASTM International is a member of CrossRef. Author Title Ultrasonic Technique for Residual Stress Measurement in Ductile Iron Continuous Cast Round Bars Symposium , 0000-00-00 Committee E07