You need JavaScript to view this

Personal computer based system to evaluate J-integral by a single specimen unloading compliance method: Pt. 2. Results on A533B Class I steel and CORONA-5

Abstract

A personal computer based single specimen unloading technique has been demonstrated using a nuclear grade pressure vessel material, A533B Class I steel, and an ..cap alpha..-..beta.. titanium alloy, CORONA-5. Experimental parameters investigated in the case of steel include the effect of test temperature, loading rate and neutron irradiation. Results revealed the effect of dynamic strain aging (DSA) as a drop in the critical crack initiation fracture toughness (Jsub(q)); the minimum in Jsub(q) shifts to higher temperatures at higher test speeds as predicted from DSA models. In CORONA-5, the effects of microstructure and heat treatment for two different sizes of equiaxed ..cap alpha.. morphology in a ..beta..-matrix heat treated to different yield strengths were investigated. It is found that the observed higher values of Jsub(q) and tearing modulus result from a greater tortuosity of the crack path and ease of crack blunting. The largest increase in Jsub(q) occurred in fine equiaxed ..cap alpha.. microstructure aged to a nominal yield strength of 896 MPa. Results reveal potential application of the low cost technique for determining fracture toughness of engineering materials.
Publication Date:
Jan 01, 1988
Product Type:
Journal Article
Reference Number:
GBN-88-003410; EDB-88-148641
Resource Relation:
Journal Name: Eng. Fract. Mech.; (United Kingdom); Journal Volume: 30:3
Subject:
36 MATERIALS SCIENCE; STEEL-ASTM-A533-B; FRACTURE PROPERTIES; TITANIUM BASE ALLOYS; ALUMINIUM ALLOYS; CHROMIUM ALLOYS; CRACK PROPAGATION; DYNAMIC LOADS; FAST NEUTRONS; HEAT TREATMENTS; MICROSTRUCTURE; MOLYBDENUM ALLOYS; PHYSICAL RADIATION EFFECTS; PRESSURE VESSELS; STRAIN AGING; STRAIN RATE; TEMPERATURE DEPENDENCE; YIELD STRENGTH; AGING; ALLOYS; BARYONS; CARBON STEELS; CONTAINERS; CRYSTAL STRUCTURE; ELEMENTARY PARTICLES; FERMIONS; HADRONS; IRON ALLOYS; IRON BASE ALLOYS; MECHANICAL PROPERTIES; NEUTRONS; NUCLEONS; RADIATION EFFECTS; STEELS; TITANIUM ALLOYS; 360103* - Metals & Alloys- Mechanical Properties
OSTI ID:
6979758
Research Organizations:
Polytechnic Univ., Brooklyn, NY (US). Dept. of Metallurgy and Materials Science; Korea Advanced Energy Research Inst., Choong-Nam (KR); Garrett Engine Co., Phoenix, AZ (USA); North Carolina State Univ., Raleigh (USA). Dept. of Nuclear Engineering
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: EFMEA
Submitting Site:
GBN
Size:
Pages: 349-359
Announcement Date:

Citation Formats

Narendrnath, K R, Margolin, H, Jung, Y H, Godavarti, P S, and Murty, K L. Personal computer based system to evaluate J-integral by a single specimen unloading compliance method: Pt. 2. Results on A533B Class I steel and CORONA-5. United Kingdom: N. p., 1988. Web. doi:10.1016/0013-7944(88)90193-2.
Narendrnath, K R, Margolin, H, Jung, Y H, Godavarti, P S, & Murty, K L. Personal computer based system to evaluate J-integral by a single specimen unloading compliance method: Pt. 2. Results on A533B Class I steel and CORONA-5. United Kingdom. doi:10.1016/0013-7944(88)90193-2.
Narendrnath, K R, Margolin, H, Jung, Y H, Godavarti, P S, and Murty, K L. 1988. "Personal computer based system to evaluate J-integral by a single specimen unloading compliance method: Pt. 2. Results on A533B Class I steel and CORONA-5." United Kingdom. doi:10.1016/0013-7944(88)90193-2. https://www.osti.gov/servlets/purl/10.1016/0013-7944(88)90193-2.
@misc{etde_6979758,
title = {Personal computer based system to evaluate J-integral by a single specimen unloading compliance method: Pt. 2. Results on A533B Class I steel and CORONA-5}
author = {Narendrnath, K R, Margolin, H, Jung, Y H, Godavarti, P S, and Murty, K L}
abstractNote = {A personal computer based single specimen unloading technique has been demonstrated using a nuclear grade pressure vessel material, A533B Class I steel, and an ..cap alpha..-..beta.. titanium alloy, CORONA-5. Experimental parameters investigated in the case of steel include the effect of test temperature, loading rate and neutron irradiation. Results revealed the effect of dynamic strain aging (DSA) as a drop in the critical crack initiation fracture toughness (Jsub(q)); the minimum in Jsub(q) shifts to higher temperatures at higher test speeds as predicted from DSA models. In CORONA-5, the effects of microstructure and heat treatment for two different sizes of equiaxed ..cap alpha.. morphology in a ..beta..-matrix heat treated to different yield strengths were investigated. It is found that the observed higher values of Jsub(q) and tearing modulus result from a greater tortuosity of the crack path and ease of crack blunting. The largest increase in Jsub(q) occurred in fine equiaxed ..cap alpha.. microstructure aged to a nominal yield strength of 896 MPa. Results reveal potential application of the low cost technique for determining fracture toughness of engineering materials.}
doi = {10.1016/0013-7944(88)90193-2}
journal = {Eng. Fract. Mech.; (United Kingdom)}
volume = {30:3}
journal type = {AC}
place = {United Kingdom}
year = {1988}
month = {Jan}
}