钼钨系高导热率热作模具钢高温性能
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High Temperature Performance of a Mo-W Type Hot Work Die Steel of High Thermal Conductivity
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图6. 两种模具钢在620℃保温20 h后的硬度-温度曲线 |
Fig.6. Hardness dependent on time curve of the two diesteels after 20 h of tempering at 620℃ |
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