砷、锡含量对E级低合金钢板组织性能影响的对比试验研究  

Comparative Testing Research on Influnce of Arsenic &Tin Content on Microstructure and Performance of Grd. E Low Alloy Steel Plates

作　　者：刘胜赫 董富军[1] 熊慎凯[1] 廖海秋[1] Liu Shenghe;Dong Fujun;Xiong Shenkai;Liao Haiqiu(Xinyu Iron and Steel Group Co.,Ltd.Xinyu 338001 Jiangxi,China)

机构地区：[1]新余钢铁集团有限公司,江西新余338001

出　　处：《江西冶金》2018年第3期1-3,共3页Jiangxi Metallurgy

摘　　要：对不同砷、锡含量的12 mm E级低合金钢板进行对比试验,结果表明:As,Sn含量对低合金钢板的拉伸性能影响不大,但对其低温冲击性能影响较为明显,尤其是钢板正火后的低温冲击性能出现了降低;砷、锡含量高的低合金钢板热轧态组织中珠光体尺寸不均匀,正火态组织中铁素体晶粒内部出现了小尺寸珠光体团,这是低温冲击韧性下降的主要原因。Through the comparative testing of the 12 mm Grd. E low alloy steel plates with different As、Sn content,the results show that the contents of As and Sn have little effect on the tensile properties of low-alloy steel plates,but has obvious effect on the low-temperature impact properties,particularly that are reduced after normalizing. The pearlite size in the hot rolled low alloy steel with high arsenic and tin content is not uniform,and small size pearlite clusters appear in the ferrite grains in the normalized structure,which are the main reasons for the decrease of low temperature impact toughness.

关 键 词：砷、锡含量 低温韧性 组织 力学性能 

分 类 号：TG113[金属学及工艺—物理冶金] TG142.331[金属学及工艺—金属学]