中心裂纹论文

超声波探伤不合格T91钢棒材的分析和工艺改进
论文摘要试验T91钢（/%:0.10C,0.30Si,0.45Mn,0.012P,0.005S,8.90Cr,0.95Mo,0.08Nb,0.22V）的生产流程为60tUHPE...