细晶超 塑性(Micrograinsuperplasticity)因为其组织须具有微细的晶粒结构(Fine-Grain Structure),又称为组织超塑性(Structuralsuperplasticity),而且操作温度固定,也 称为恒温超塑性(IsothermalSuperplasticity)。
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使用状态的组织为细晶粒的铁素体—珠光体，强度比普通碳素结构钢Q235高约20%～30%，耐大气腐蚀性能高20%～38%。
Using the state of the organization for the fine grain ferrite pearlite, strength than ordinary carbon structural steel Q235 about 20% ~ 30%, high atmospheric corrosion resistance of 20% ~ 38%.
研究了高强度细晶粒碳素钢焊接接头熔合区附近的显微组织及精细结构。
The microstructure and fine structure of weld fusion zone for high strength fine grain steel were studied.
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