针对几种常用的压力容器用钢和舰船钢介绍了平面应变止裂韧度试验的全过程，得到了几种材料不同温度下的平面应变止裂韧度值。
The whole procedure of plain strain arrest toughness K Ia on several traditional ship steel was introduced. The values of plain strain arrest toughness K Ia at different temperatures were obtained.
为了考察奥氏体-贝氏体球铁的可靠性和使用寿命，还进行了延性断裂韧度与接触疲劳性能的试验。
The tests for the ductile fracture toughness and the contact fatigue are also carried out for examining serviceability and durability of austenite-bainite ductile cast iron.
用断裂韧度、缺口冲击试验评定钢的脆性倾向。
The brittleness tendency of steel has been assessed with fracture toughness and notch impact tests.
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