60Mn钢喷丸表面的力学性能  

MECHANICAL PROPERTIES OF SHOT PEENED SURFACE FOR STEEL 60Mn

作　　者：盖秀颖[1] 李家宝[1] 康增桥 王中光[1] 朱永平[1] 李超[1] 

机构地区：[1]中国科学院金属研究所材料疲劳与断裂国家重点实验室,沈阳工业大学

出　　处：《金属学报》1996年第6期605-610,共6页Acta Metallurgica Sinica

基　　金：国家自然科学基金

摘　　要：利用Ｘ射线应力分析技术和应变电测法，对淬火加低温回火６０Ｍｎ钢的喷丸表面和未喷丸表面的屈服应力进行了测量．结果表明，喷丸处理虽然使表面Ｘ射线衍射线的半高宽值显著减小，却使其屈服应力得到提高．这一发现说明，即使对于硬状态材料，喷丸表面也能获得组织强化，对于某些材料状态，半高宽测量结果不能正确反映其表面的力学特性．The yield strengths of shot peened and unpeened surfaces of a quenched and low temperature tempered steel 60Mn have been detected by using the X-ray stress analyses and strain gauge methods. The results show that shot peening raised the surface yield stresses although it apparently decreases the half width value of X-ray diffraction profile. This discovery proves that the shot peened surface has been work hardened, rather than work softened. On the other hand, it implies that half width value could not correctly characterize the superficial mechanical features for some material states.

关 键 词：喷丸 表面屈服应力 X射线衍射 锰钢 

分 类 号：TG142.33[一般工业技术—材料科学与工程] TG668[金属学及工艺—金属材料]