Characterization of Annealing in Polycrystalline Copper Using Harmonic Generation Technique

被引：6

作者：

Mini, R. S. ^{[1
]}

Balasubramaniam, Krishnan ^{[1
]}

Ravindran, Parag ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Mech Engn, CNDE, Madras 600036, Tamil Nadu, India

[2] Indian Inst Technol, Dept Engn Mech, Madras, Tamil Nadu, India

来源：

40TH ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: INCORPORATING THE 10TH INTERNATIONAL CONFERENCE ON BARKHAUSEN NOISE AND MICROMAGNETIC TESTING, VOLS 33A & 33B | 2014年 / 1581卷

关键词：

Annealing; Nonlinear Ultrasonic Method; Recrystallisation; Harmonic Generation; DAMAGE; FATIGUE; ALLOY;

D O I：

10.1063/1.4864885

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Sensitivity of nonlinear ultrasonic method towards isothermal annealing in pure copper is investigated in this study. It was reported that, recovery, recrystallization and grain growth associated with annealing has profound influence on nonlinearity parameter. Presence of precipitates and secondary phase particles, and its effect on nonlinearity parameter was considered by many authors. However, in this study, focus is on the influence of grain-growth on nonlinearity parameter. Variation of non-linearity parameter, beta, with different holding durations were analyzed. All the samples were annealed at a temperature above its recrystallization temperature. Further, metallography studies as well as hardness measurements were performed to understand the relationship between microstructural changes and ultrasonic nonlinearity parameter.

引用

页码：675 / 681

页数：7

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