upper bainite 上贝茵体 ; [机] 上贝氏体 ; 上变韧铁
irregular upper bainite 非常规上贝氏体
rod-like upper bainite 短棒状上贝氏体
carbide-free upper bainite 无碳化物上贝氏体
With large welding heat input, more upper Bainite and granular Bainite form, which is benefit to improve the property of HAZ.
采用大的线能量焊接，形成较多的上贝氏体和粒状贝氏体组织，对改善接头性能有利。
The increase of weld current can reduce the hardness and the content of upper bainite, and lower the sensibility of hydrogen cracking of the joints.
在避免烧穿的前提下增大焊接电流能够减小硬度、减少上贝氏体，从而降低氢致开裂敏感性。
Themicrostructure of bonded zone consist of upper bainite and grain boundary ferrite.
接合部组织由晶界铁素体及晶内上贝氏体组成。
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