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.
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 results show that the one-step temper embrittlement (OSTE) is the main factor to cause the crack of engine exhaust pipe washers.
对开裂的发动机排气歧管垫片进行了失效分析，发现产生第一类回火脆性是导致垫片开裂的原因。
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