X90高强管线钢的应变时效行为和敏感温度
杨军, 毕宗岳, 南黄河, 刘海璋

Investigation of Strain Aging Behavior and Sensitive Temperature of X90 High Strength Pipeline Steel
YANG Jun, BI Zongyue, NAN Huanghe, LIU Haizhang
表3 应变时效处理前后X90高强管线钢的低温冲击测试结果
Table 3 Low-temperature impact test results of X90 high-strength pipeline steel before and after strain aging treatment
Aging treatment processTest temperature/K

Total energy

Ak/J

Crack formation energy

Ai/J

Crack growth energy

Ap/J

Before aging253.1539892306
373.15K+5min38691295
423.15K+5min37484263
473.15K+5min37083287
523.15K+5min34790257