| Cr-Mo耐热钢焊接接头蠕变过程中Mo_2C变化规律的研究 |
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| 引用本文： | 陈春焕,丁成钢,赵秀娟,刘志权. Cr-Mo耐热钢焊接接头蠕变过程中Mo_2C变化规律的研究[J]. 理化检验(物理分册), 2000, 0(5) |
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| 作者姓名： | 陈春焕 丁成钢 赵秀娟 刘志权 |
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| 作者单位： | 大连铁道学院材料科学与工程系!大连116028 |
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| 摘 要： | 研究了 2 .2 5Cr- 1 Mo钢焊接接头蠕变时母材和焊缝中的 Mo2 C的变化规律。试验结果表明 ,在焊接接头中 Mo2 C呈针状、片状和碎屑状三种形貌 ,但主要以针状形态析出 ,当以片状或碎屑状析出时 ,会使材料的蠕变抗力降低。针状 Mo2 C在铁素体中比在贝氏体中尺寸粗大
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| 关 键 词： | 2.25Cr-1Mo钢 焊接接头 蠕变 Mo2C |
STUDY OF Mo_2C IN Cr Mo STEEL WELDED JOINTS DURING CREEP |
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| Chen Chunhuan Ding Chenggang Zhao Xiujuan Liu Zhiquan. STUDY OF Mo_2C IN Cr Mo STEEL WELDED JOINTS DURING CREEP[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2000, 0(5) |
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| Authors: | Chen Chunhuan Ding Chenggang Zhao Xiujuan Liu Zhiquan |
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| Abstract: | The transformation of Mo 2C carbide in 2.25Cr 1Mo steel welded joints during creep rupture test was studied. The results showed that Mo 2C carbide was found in the joints with three kinds of morphology which were needle, slice and rag but most of them were needle. The creep resistance was decreased when the slice and rag type Mo 2C carbide appeard. The needle like Mo 2C carbide was coarser in ferrite than in bainite. |
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| Keywords: | Cr 1Mo steel Weld joint Creep Mo 2C |
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