It is show that the ship-plates produced by these parameters have high strength and good low-temperature toughness, and the normalizing treatment is no longer necessary.

结果表明，用这种工艺生产的船板具有高强度和良好的低温韧性，完全可以代替正火处理。

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The influence of austempering treatment on the microstructure, retained austenite and fracture toughness of high silicon cast steel has been studied.

研究了在不同等温淬火温度热处理后高硅铸钢的显微组织与残余奥氏体量和材料断裂韧性间的关系。

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The mill Liners of high-carbon medium-chromium alloy steel have ideal coordination of toughness and hardness after optimum heat treatment determined by cross-design.

本文介绍采用高碳中铬合金钢作为磨机衬板材料，按照正交设计法优选热处理工艺参数，得到材料韧性和硬度的理想配合。

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