经不同温度下的拉伸试验，考察了几种热作工具钢的中温脆性。
The medium temperature embrittlement of several hot-working tool steels has been investigated by tensile tests at various temperatures.
介绍了硬脆性泥页岩稳定性评价的几种新方法——改进的热滚分散法、泥饼强度测试法及动滤失试验法。
New evaluation methods for fragile shale are introduced, including improved hot rolling test, filter cake strength tester, and dynamic filtration test.
此外，还研究了焊接热输入量对局部脆性区断裂韧性的影响，并通过定性、定量的金相显微组织评定对试验结果进行了分析。
In addition, the effect of welding heat input was studied. Qualitative and quantitative metallographic examination of the simulated microstructures was made to assist t...
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