熔敷金属组织主要是针状铁素体,少量的先共析铁素体。
Microstructure of the deposited metals is composed of acicular ferrite and a little proeutectoid ferrite.
熔敷金属组织主要是针状铁素体,少量的先共析铁素体。
The microstructure is composed of acicular ferrite and a little proeutectoid ferrite.
结果表明,随冷却速率的增大,先共析铁素体的晶粒尺寸减小,体积分数增大,针状铁素体增多;
The results show that with the increase of cooling rate, the grain size of proeutectoid ferrite decreases, the volume fraction of proeutectoid ferrite and acicular ferrite increases.
在较大焊接热输入条件下焊接,焊缝金属产生粗大先共析铁素体、过热区产生粗大粒状贝氏体,焊接接头低温冲击韧性因此降低。
The coarse primary ferrite appeared in weld metal, and coarse bainite appeared in heat-affected zone under larger heat input welding condition, which caused low...
高碳钢中加入的铬元素抑制先共析铁素体析出,减小珠光体片层间距,可明显提高抗拉强度,提高断面收缩率,改善线材的拉拔性能。
By cr microalloying, the fore eutectoid ferrite eduction is restrained, the distance between rows of pearlite is decreased, then the tensile strength, section shrinkage and drawing property of high...
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;
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;
The results show that, in hypoeutectoid steels, deformation at medium temperature may fine the structure and improve the distribution of ferrite and pearlite greatly;
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