Applying the current elastic-plastic fracture toughness testing method (GB2038-91) to determinate the JIC -values of steel 907A and its weld, it cannot be obtained reasonable measured results.

• 应用现行弹塑性断裂韧度测试方法(GB2038-91)测定船用907A钢及其焊缝金属的J_(IC)值,难以得到符合标准规定的测试结果。