red brittleness

Phase Chart Analysis of "Red Brittleness" Phenomenon in the Industrial Pure Iron Forging Because of over-heated, hardness of part blade on the cutter is inadequate.

工业纯铁锻造过程中红脆现象的相图分析原有刀片刃口局部材料的硬度不够，材质脆性过大，有过热现象。

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。

By the research on forging and cold forming performance of electromagnetism pure iron, the rational forging process is brought forth, it is specially emphasized to avoid the red brittleness and blue brittleness forging temperature range for the electromagnetism pure iron.

通过对电磁纯铁锻造与冷成形性能的分析研究，给出了合理的锻造工艺，特别强调了要避开电磁纯铁的红脆与兰脆锻造温度区域。