A Comprehensive Model for Hardness Evaluation of Low-Alloy Steels Based on Carbon Content and Ultrasonic Wave Velocity
Küçük Resim Yok
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Soc Nondestructive Test
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Ultrasonic techniques allow for the nondestructive investigation of material properties including hardness, but the requirement of correlation for each material, such as different alloys of steel, separately turns these tasks into a formidable process. This study aims to overcome this problem by proposing a new technique for hardness evaluation of low-alloy steels based on ultrasonic wave velocity and information about the weight percent of carbon content. For this purpose, carbon steel samples with different carbon content, less than 0.5 wt%, were selected. Samples were annealed at varying temperatures, and then an immersion ultrasonic technique was used to measure longitudinal ultrasonic wave velocity in each sample. The hardness of annealed samples was determined on the rockwell B scale. The relationship between ultrasonic wave velocity and hardness of annealed steel samples was investigated in terms of carbon content. A mathematical model was developed, based on carbon content and ultrasonic wave velocity, to predict hardness.
Açıklama
Anahtar Kelimeler
Annealing, Hardness, Ultrasonic Wave Velocity, Longitudinal Waves, Low-Alloy Steel, Steel Carbon Content, Austenitic Stainless-Steel, Electron-Beam Irradiation, Mechanical-Properties, Annealing Behavior, Grain-Size, Microstructure, Temperature, Stability, Sheet
Kaynak
Materials Evaluation
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
75
Sayı
12
