钢中的残余有害元素致使钢材产生红脆性表面裂纹和具有回火脆性倾向，并使耐热钢的热强性降低。
The residual deleterious elements in steel lead to products occurring red brittleness surface crack and temper brittleness, and lead to hot strength of heat resistant steel decreasing.
钢中的残余有害元素致使钢材产生红脆性表面裂纹和具有回火脆性倾向，并使耐热钢的热强性降低。
The residual deleterious elements in steel lead to the products occurring red surface brittleness crack and temper brittleness, and lead to the hot strength of heat resistant steel decreasing.
微量稀土改善高合金耐热钢热强性有一定的普遍性，且是其他元素无法取代的。
The results mentioned above provide a certain universality. The role of the micro alloying with RE to accomplish this improvement of steel properties cannot be replace…
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