Its microstructure is fine pearlite and carbides.
金相组织是细珠光体和碳化物。
The result shows that in a great scope of cooling rates, constant percentage of fine pearlite and ferrite can be obtained.
结果表明在相当大的冷却速度范围内，可获得稳定体积百分含量的细片状珠光体加铁素体组织。
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%.
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%。
The fine ferrite and pearlite were obtained in the meantime and all kinds of properties can meet the request of national standard.
同时可以获得细小的铁素体和珠光体组织，各项指标满足国家标准的要求。
Adding different alloy combination of re, copper and titanium, then through gestation and nodulizing disposal, we got the fine texture of ferrite pearlite and spheroidal graphite.
通过在中硅耐热铸铁中添加不同组合的合金元素稀土、铜、钛使其合金化，经过孕育和球化处理，得到铁素体+珠光体+球状石墨的金相组织。
The completely hardening region is composed of fine acicular martensites, residual austenites and a few dot-like carbonides and the transition region is made up of martensites and sorbites (pearlite).
完全硬化区由细小针状马氏体、残余奥氏体和少量点状碳化物组成，过渡区由马氏体和回火索氏体（珠光体）组成；
The results show that niobium increment retains the formation of pearlite and makes fraction of acicular ferrite and fine niobium carbonitride niobium increase.
研究结果表明，铌含量的提高抑制了珠光体的形成，促进了针状铁素体的形成，细小的碳氮化铌析出相增多；
The results show that, in hypoeutectoid steels, deformation at medium temperature may fine the structure and improve the distribution of ferrite and pearlite greatly;
结果表明，对于亚共析钢，在中温区变形、保温后可使先共析铁素体和珠光体组织大大细化，显著改善钢中铁素体和珠光体的分布状况；
Its main compositive materials are: cement, EPS, high molecule binder, fiber, expanded pearlite and super-fine sand.
其组成材料主要为：水泥、聚苯乙烯泡沫颗粒、高分子粘结剂、纤维、膨胀珍珠岩及特细砂等。
Its main compositive materials are: cement, EPS, high molecule binder, fiber, expanded pearlite and super-fine sand.
其组成材料主要为：水泥、聚苯乙烯泡沫颗粒、高分子粘结剂、纤维、膨胀珍珠岩及特细砂等。
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