A cost effective alloy design based on niobium microalloying was developed by Shagang for the production of 32 mm gage K......

为研究不同冷却速度对X70钢在自保护药芯焊丝焊接后显微组织及力学性能的变化,通过制定焊接工艺参数,完成X70钢板的焊接.利用Gleeb......