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金属学报  1986, Vol. 22 Issue (2): 75-154    
  论文 本期目录 | 过刊浏览 |
碳含量对合金钢锭轴心晶间裂纹的影响
亓尚明;郑国学;史乃立
西宁钢厂研究所;西宁钢厂研究所;马鞍山钢铁学院
EFFECT OF CARBON CONTENT ON AXI-CORED INTERGRANULAR CRACKS OF STEEL INGOT
QI Shangming; ZHENG Guoxue (Institute of Xining Steel Works); SHI Naili (Ma' anshan Institute of Iron and Steel Technology)
引用本文:

亓尚明;郑国学;史乃立. 碳含量对合金钢锭轴心晶间裂纹的影响[J]. 金属学报, 1986, 22(2): 75-154.
, , . EFFECT OF CARBON CONTENT ON AXI-CORED INTERGRANULAR CRACKS OF STEEL INGOT[J]. Acta Metall Sin, 1986, 22(2): 75-154.

全文: PDF(3850 KB)  
摘要: 本文在大量生产统计和实验室检验的基础上,对Cr5Mo,12CrMoV,10等钢的轴心晶间裂纹的出现规律进行了研究,并做了25kg实验锭的低倍,断口、金相和电子探针分析。结果表明,钢锭中的轴心晶间裂纹是真实裂纹,其产生与钢中含碳量有关,它属于钢锭凝固过程中高温固态δ→γ相变引起的高温裂纹。
Abstract:An account was discussed of the nature of intergranular cracks appeared in the axial core of ingot of low carbon alloy steels, such as Cr5Mo, 12CrMoV and steel 10 on the basis of informations of industrial production and laboratory test. The experimental steel ingots weighing about 25 kg were examined under macroscopic observation, fractography, metallography and EMPA. It showed that the intergranular crack in axial core is true crack which seems to be related to the carbon content in steel owing to the high temperature δ→γ transformation on the solidification of ingot.
收稿日期: 1986-02-18     
1 田继丰;刘兴志;魏堃,金属学报,14 (1978) ,171
2 金属研究所;大连钢厂联合研究组,金属学报,14 (1978) ,165.
3 冶金部钢铁研究院;北京钢厂;齐齐哈尔钢厂合编,合金钢断口金相图谱,科学出版社,1979,p.54.
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