Availability of brittlefracture prevention by reinforcement on steel surface

进行了基础试验，明确了钢材表面加固防止脆性断裂的可能性。本研究采用激光喷丸作为强化方法。结果表明，在本研究所用钢材、试件形状和参数一定的条件下，对钢材表面进行激光喷丸强化，可以使钢材的变形能力增大到脆性断裂。

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.