Impact properties of 304L stainless steel GTAW joints evaluated by high strain rate of compression tests

Woei Shyan Lee; Chi Feng Lin; Chen Yang Liu; Fan Tzung Tzeng

doi:10.1016/j.jnucmat.2004.07.031

Impact properties of 304L stainless steel GTAW joints evaluated by high strain rate of compression tests

Woei Shyan Lee, Chi Feng Lin, Chen Yang Liu, Fan Tzung Tzeng

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

This paper presents an investigation into the high velocity impact of 304L stainless steel gas tungsten arc welded (GTAW) joints at strain rates between 10^-3 and 7.5 × 10³ s^-1 using a compressive split-Hopkinson bar. The results show that the impact properties and fracture characteristics of the tested weldments depend strongly on applied strain rate. This rate-dependent behavior is in good agreement with model predictions using the hybrid Zerilli-Armstrong constitutive law. It is determined that the tested weldments fail as a result of adiabatic shearing. The fracture surfaces of the fusion zone and base metal regions are characterized by the presence of elongated dimples. The variation in the observed dimple features with strain rate is consistent with the results of the impact stress-strain curves.

Original language	English
Pages (from-to)	335-344
Number of pages	10
Journal	Journal of Nuclear Materials
Volume	335
Issue number	3
DOIs	https://doi.org/10.1016/j.jnucmat.2004.07.031
Publication status	Published - 2004 Dec 1

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
General Materials Science
Nuclear Energy and Engineering

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10.1016/j.jnucmat.2004.07.031

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title = "Impact properties of 304L stainless steel GTAW joints evaluated by high strain rate of compression tests",

abstract = "This paper presents an investigation into the high velocity impact of 304L stainless steel gas tungsten arc welded (GTAW) joints at strain rates between 10-3 and 7.5 × 103 s-1 using a compressive split-Hopkinson bar. The results show that the impact properties and fracture characteristics of the tested weldments depend strongly on applied strain rate. This rate-dependent behavior is in good agreement with model predictions using the hybrid Zerilli-Armstrong constitutive law. It is determined that the tested weldments fail as a result of adiabatic shearing. The fracture surfaces of the fusion zone and base metal regions are characterized by the presence of elongated dimples. The variation in the observed dimple features with strain rate is consistent with the results of the impact stress-strain curves.",

author = "Lee, {Woei Shyan} and Lin, {Chi Feng} and Liu, {Chen Yang} and Tzeng, {Fan Tzung}",

note = "Funding Information: The authors would like to acknowledge both their department and the National Science Council of the Republic of China for their financial support. The grant from the NSC is numbered NSC 91-2216-E006-063. ",

year = "2004",

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doi = "10.1016/j.jnucmat.2004.07.031",

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journal = "Journal of Nuclear Materials",

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T1 - Impact properties of 304L stainless steel GTAW joints evaluated by high strain rate of compression tests

AU - Lee, Woei Shyan

AU - Lin, Chi Feng

AU - Liu, Chen Yang

AU - Tzeng, Fan Tzung

N1 - Funding Information: The authors would like to acknowledge both their department and the National Science Council of the Republic of China for their financial support. The grant from the NSC is numbered NSC 91-2216-E006-063.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - This paper presents an investigation into the high velocity impact of 304L stainless steel gas tungsten arc welded (GTAW) joints at strain rates between 10-3 and 7.5 × 103 s-1 using a compressive split-Hopkinson bar. The results show that the impact properties and fracture characteristics of the tested weldments depend strongly on applied strain rate. This rate-dependent behavior is in good agreement with model predictions using the hybrid Zerilli-Armstrong constitutive law. It is determined that the tested weldments fail as a result of adiabatic shearing. The fracture surfaces of the fusion zone and base metal regions are characterized by the presence of elongated dimples. The variation in the observed dimple features with strain rate is consistent with the results of the impact stress-strain curves.

AB - This paper presents an investigation into the high velocity impact of 304L stainless steel gas tungsten arc welded (GTAW) joints at strain rates between 10-3 and 7.5 × 103 s-1 using a compressive split-Hopkinson bar. The results show that the impact properties and fracture characteristics of the tested weldments depend strongly on applied strain rate. This rate-dependent behavior is in good agreement with model predictions using the hybrid Zerilli-Armstrong constitutive law. It is determined that the tested weldments fail as a result of adiabatic shearing. The fracture surfaces of the fusion zone and base metal regions are characterized by the presence of elongated dimples. The variation in the observed dimple features with strain rate is consistent with the results of the impact stress-strain curves.

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Impact properties of 304L stainless steel GTAW joints evaluated by high strain rate of compression tests

Abstract

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