Evolution of Austenite Recrystallization and Grain Growth Using Laser Ultrasonics

Recrystallization and Grain Growth of Cold drawn Gold bonding Wire

Recrystallization and grain growth of gold bonding wire have been investigated with Electron Back Scatter Diffraction (EBSD). The bonding wires were wire-drawn to an equivalent strain greater than 11.4 with final diameter between 25 and 30μm. Annealing treatments were carried out in a salt bath at 300°C, 400°C for 1 min, 10 min, 60 min, and 1 day. The textures of the drawn gold wires contain ma...

Primary Recrystallization and Grain Growth of Tough Pitch Copper Wire

Tough pitch copper wire (99.97% Cu) is generally characterized by the spiral elongation number. The principle of the test is based on the influence of impurities on the recrystallization kinetics. Alternative non-metallographic techniques to characterize the recrystallization kinetics have been investigated in this study, such as differential scanning calorimetry (D.S.C.) and residual electrica...

Recrystallization and Grain Growth of Gold bonding Wire

Recrystallization and grain growth of gold bonding wire have been investigated with Electron Back Scatter Diffraction (EBSD). The textures of the drawn gold wires contain major <111>, minor <100> and small fractions of complex fiber components. The <100> oriented regions are located in the center and surface of the wire, and the complex fiber component regions are located near the surface. The ...

The Effect of Precipitate Evolution on Austenite Grain Growth in RAFM Steel

To study the effects of various types of precipitates and precipitate evolution behavior on austenite (size and phase fraction) in reduced activation ferritic/martensitic (RAFM) steel, RAFM steel was heated to various austenitizing temperatures. The microstructures of specimens were observed using optical microscopy (OM) and transmission electron microscopy (TEM). The results indicate that the ...

Research on abnormal grain growth in reversely transformed austenite structure