Availability of brittlefracture prevention by reinforcement on steel surface

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。

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.