Availability of brittlefracture prevention by reinforcement on steel surface

通过钢材表面强化来防止脆性断裂的可行性

• 批准号: 23656342
• 负责人: SAKINO Yoshihiro
• 金额: $ 1.5万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656342/
• 关键词: 脆性破断; 表面強化; レーザピーニング; 脆性破壊; 曲げ試験; 残留応力

Basic experiments were conducted to make clear a possibility of brittle fracture prevention by reinforcement on steel surface. Laser peening was performed as reinforcement method in this study. As a result, it was clarifythat reinforcement on steel surface by laser peening can make deformation capacity until brittle fracture larger under stated conditions for steel, specimen shape and parameter used in thisstudy.

进行了基础实验，以明确钢表面增强防止脆性断裂的可能性。本研究以雷射喷丸强化之方式进行。结果表明，在本研究所用钢材、试样形状和参数的规定条件下，激光喷丸强化钢表面，可使钢的变形能力增大，直至脆性断裂。