| XM—19不锈钢锻造开裂的研究 |
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| 引用本文： | 莫立华 朱永新. XM—19不锈钢锻造开裂的研究[J]. 理化检验(物理分册), 1999, 35(1): 12-14,24 |
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| 作者姓名： | 莫立华 朱永新 |
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| 作者单位： | 中科院金属研究所!沈阳110015 |
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| 摘 要： | 研究了ＸＭ－１９不钢锻造开裂的原因，实验结果表明，钢锭加热温度过高，从而极大地降低了晶界塑性，晶界强度低于晶内强度，造成锻造开裂。锻造时，裂纹起地晶界和表面初始缺陷处，并沿晶界扩展，向纵深发展，断口显示出典型的沿晶断裂。
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| 关 键 词： | 锻造开裂 过烧 沿晶断裂 不锈钢 |
INVESTIGATION ON FORGING CRACKS IN XM-19 STAINLESS STEEL |
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| Mo Lihua Zhu Yongxin Gao Jie Zhou Qianqing Qi Ruichang. INVESTIGATION ON FORGING CRACKS IN XM-19 STAINLESS STEEL[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 1999, 35(1): 12-14,24 |
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| Authors: | Mo Lihua Zhu Yongxin Gao Jie Zhou Qianqing Qi Ruichang |
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| Abstract: | The cause of forging cracks in XM-19 stainless steel billet has been investigated. The results showed that because the furnace temperature was too high, the grain boundary plasticity of the billet decreased greatly and the strength of the grain boundary was lower than that of the grains. While the billet was forged, cracks originated from the grain boundary and the original defects on the surface, and extended along the grain boundary. The fracture showed typical intergranular fracture characteristics. |
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| Keywords: | Forging crack Burning Intergranular fracture |
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