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PB92108901

Publication Date	1991
Personal Author	Hicho, G. E.; Harne, D. E.
Page Count	46
Abstract	Traditional mechanical property tests, ultimate and yield strength, reduction in area, elongation, impact, and the nil-ductility temperature were performed on AAR TC128 grade B steel in the normalized, and the normalized and stress relieved conditions from -51 C to room temperature. In addition the crack initiation fracture toughness, as function of temperature, was determined using crack tip opening displacement (CTOD) and J integral test procedures. The crack arrest fracture toughness, as a function of temperature were also determined. It was found that the normalized and stress relieved steel had overall better mechanical and fracture toughness properties than the normalized steel.
Keywords	Fracture mechanics Toughness Carbon steels Fracture strength Tensile strength Normalizing(Statistics) Stress relaxation Temperature dependence Crack opening displacement Manganese alloys Tank cars J integral
Source Agency	National Institute of Standards and Technology
NTIS Subject Category	71J - Iron & Iron Alloys 81C - Fuel & Propellant Tanks
Corporate Authors	National Inst. of Standards and Technology (MSEL), Gaithersburg, MD. Metallurgy Div.
Supplemental Notes	See also PB90-207796.
Document Type	Technical Report
NTIS Issue Number	199202

Mechanical Properties and Fracture Toughness of AAR TC128 Grade B Steel in the Normalized, and Normalized and Stress Relieved Conditions.

Mechanical Properties and Fracture Toughness of AAR TC128 Grade B Steel in the Normalized, and Normalized and Stress Relieved Conditions.
PB92108901

Publication Date	1991
Personal Author	Hicho, G. E.; Harne, D. E.
Page Count	46
Abstract	Traditional mechanical property tests, ultimate and yield strength, reduction in area, elongation, impact, and the nil-ductility temperature were performed on AAR TC128 grade B steel in the normalized, and the normalized and stress relieved conditions from -51 C to room temperature. In addition the crack initiation fracture toughness, as function of temperature, was determined using crack tip opening displacement (CTOD) and J integral test procedures. The crack arrest fracture toughness, as a function of temperature were also determined. It was found that the normalized and stress relieved steel had overall better mechanical and fracture toughness properties than the normalized steel.
Keywords	Fracture mechanics Toughness Carbon steels Fracture strength Tensile strength Normalizing(Statistics) Stress relaxation Temperature dependence Crack opening displacement Manganese alloys Tank cars J integral
Source Agency	National Institute of Standards and Technology
NTIS Subject Category	71J - Iron & Iron Alloys 81C - Fuel & Propellant Tanks
Corporate Authors	National Inst. of Standards and Technology (MSEL), Gaithersburg, MD. Metallurgy Div.
Supplemental Notes	See also PB90-207796.
Document Type	Technical Report
NTIS Issue Number	199202