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织构是金属板材的重要信息,板材的诸多性能与其织构密切相关。织构系数Cμνl包括了全部的织构信息,是材料织构定量分析的核心,由它可进行材料性能的计算。在具有织构的材料中,织构会对表面波的速度产生影响,沿各个方向上声表面波的传播速度一般是不一致的。采用瞬态热栅激发(Impulsive Stimulated Thermal Scattering或ISTS)声表面波技术对无间隙原子钢(IF钢)板面上表面波速度的各向异性和波动性进行了检测,通过对声表面波速度波动性的分析,给出了热轧IF钢四阶织构系数的计算模型,较为准确地计算出了样品的四阶织构系数,其中,C114的计算误差控制在10%以内,C124和C134的计算误差都在20%以内。
Texture is an important piece of sheet metal, and many of its properties are closely related to its texture. The texture coefficient Cμνl, which includes all of the texture information, is at the core of the quantitative texture analysis of the material by which material properties can be calculated. In textured materials, the texture affects the speed of surface waves, which are generally not uniform in all directions. The anisotropy and volatility of the surface wave velocity on the surface of the free-space atomic steel (IF steel) were measured by using the Impulsive Stimulated Thermal Scattering (ISTS) surface acoustic wave technique. The surface acoustic wave velocity The fourth-order texture coefficient of hot-rolled IF steel is given and the fourth-order texture coefficient of hot-rolled IF steel is given. The calculation error of C114 is controlled within 10%, C124 and C134 The calculation error is less than 20%.