10.3969/j.issn.1003-8620.2018.02.017
硼对780MPa低碳贝氏体钢组织和力学性能的影响
试验低碳贝氏体钢(/%:0.08C,0.11~0.13Si,1.10~1.20Mn,0.008 ~0.009P,0.002S,0.21~0.23Ni,0.020 ~0.021Ti,0.003~0.004Nb,0 ~0.0010B,0.0007 ~0.0008O,0.003 1 ~0.003 3N)由50 kg真空感应炉熔炼,轧成45 mm钢板,并经930 ℃淬火,610℃回火.研究了0.001 0%硼对780 MPa低碳贝氏体钢45 mm板组织和力学性能的影响.结果表明,硼可显著提高试验钢的淬透性,不含硼试验钢淬火后得到粒状贝氏体,0.001 0%硼试验钢淬火后得到板条贝氏体.硼明显改善试验低碳贝氏体钢的力学性能,含0.001 0%硼试验钢淬、回火后的抗拉强度834 MPa和屈服强度771 MPa远高于不含硼试验钢的抗拉强度702 MPa和屈服强度591 MPa,实际生产中应加入适量硼可使低碳贝氏体钢得到板条贝氏体.
硼、低碳贝氏体钢、组织、力学性能
39
2018-04-28(万方平台首次上网日期,不代表论文的发表时间)
共3页
65-67