无碳化物贝氏体

结果表明，该钢在冷却过程中组织均为未溶的先共析铁素体、从奥氏体中析出的共析铁素体、少量的无碳化物贝氏体、粒状贝氏体和马氏体。

The results show that the microstructure of the steel obtained after cooling is proeutectoid ferrite , eutectoid ferrite from the austenite , a little carbide-free bainite , granular bainite and martensite .

无碳化物贝氏体耐磨铸钢材料的研制与应用

Development and Application of Carbide-Free Bainite Wear-Resistant Casting Steel Materials

探讨了回火温度对低碳Mn-Si-Cr钢的空冷无碳化物贝氏体/马氏体复相组织及水淬马氏体组织强韧性的影响。

Effect of tempering temperature on the combination of strength and toughness of air cooled carbide free bainite-martensite ( CFB / M ) microstructure and water quenched martensite ( M ) microstructure for a low carbon Mn-Si-Cr steel is experimentally investigated .

无碳化物贝氏体在曲轴上的应用与展望

Application and prospects of free - carbide bainite on shaft

研究了无碳化物贝氏体耐磨铸钢材料的组织、力学性能和耐磨性能。

The microstructure , properties and wear resistance of carbide-free bainite wear-resistant casting steel were investigated .

准铸态贝氏体铸铁中的贝氏体亦属无碳化物贝氏体。

The bainites in the microstructure of quasi as cast bainitic cast iron are bainites without carbide .

无碳化物贝氏体中机械稳定性较高的残留奥氏体可能是导致无碳化物贝氏体马氏体复相钢第一类回火脆性开始温度升高的直接原因。

The mechanical stable filmy retained austenite in carbide free bainite may directly cause the TME onset temperature rising .

设计1种新型无碳化物贝氏体Ni5.5铸钢。

A kind of carbide free bainite Ni 5.5 cast steel is designed aimed at use at cryogenic cast steel .

该钢奥氏体化后空冷，就可获得具有较复杂精细结构的无碳化物贝氏体/马氏体复相组织。

A carbide free bainite with fine bainite / martensite mixed microstructure can be obtained by air cooling after austenization .

提出了适合无碳化物贝氏体耐磨钢的最佳回火工艺，并介绍了无碳化物贝氏体钢的工况及应用结果。

They put forward the optimum tempering process for non-cabide bainite abrasion resisting steel , in addition , introduced the applied effect of the steel .

实验表明，这并非由于贝氏体马氏体复相韧化，而是与无碳化物贝氏体中的膜状残留奥氏体有关。

The experiments result showed that carbide free bainite / martensite mixed microstructure , not bainite / martensite mixed microstructure makes the TME onset temperature of the steel rising .

所研制的无碳化物贝氏体/马氏体复相钢出现第一类回火脆性的温度范围在370℃以上。

The temperature region in which tempered martensite embrittlement appears is up to 370 ℃ in the novel carbide free bainite / martensite ( CFB / M ) duplex phase steel .

其原因在于中温形成的无碳化物贝氏体具有较高的回火抗力，而无碳化物贝氏体中的热稳定性较高的富碳膜状残余奥氏体使钢呈现较高的韧性。

The cause might be that CFB has a higher temper resistance than M. And carbon enriched retained austenite film in CFB with a good thermal stability might improve the toughness of the steel after tempering at intermediate temperature .

结果表明，热处理采取960～1000℃正火、250～350℃回火，铸钢的组织为贝氏体铁素体和奥氏体组成，为无碳化物贝氏体组织，具有良好的强度和冲击韧度。

The results show that normalizing at 960 ℃~ 1 000 ℃ and tempering at 250 ℃~ 350 ℃ the microstructure of test materials is bainite ferrite and austenite , which is a carbide free bainite structure and the test steel has better strength and impact toughness .

X&射线衍射证实，贝氏体为无碳化物上贝氏体。

The bainite is carbide - free upper bainite phase which has been verified by X - ray diffraction .

试验结果表明：高碳高硅铸钢经过等温淬火后可以获得无碳化物奥氏体-贝氏体组织，不仅综合力学性能优异，而且具有优于高锰钢的抗磨性能。

The results showed that austenitic-bainitic structures without carbide can be obtained by austempering treatment which has enabled the steel casting to exhibit a good combination of mechanical properties and with better antiwear than high manganese steel .