Hot Cracking Behavior of Fe-Ni Alloys via Direct Observation

Joo Dong LEE

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Hot Cracking Behavior of Fe-Ni Alloys via Direct Observation

机译：直接观察铁镍合金的热裂行为

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Hot cracking behavior of Fe-Ni alloys was investigated by using a high-speed camera to observe hot cracking in samples that were temperature-gradient heated and tensile deformed. The susceptibility to hot cracking was reliably evaluated based on critical strain and crack propagation length as functions of Ni content and cool side temperature. Grain size and shape in the brittle temperature region depended on liquid boundary migration due to solute diffusion within the liquid boundary under temperature gradient. High susceptibility to hot cracking of Fe-Ni alloys could be explained by the high sulfur segregation near the grain boundary and the large grain size within the solid/liquid coexisting region due to the rapid migration of the liquid boundary.

机译：通过使用高速相机观察温度梯度加热和拉伸变形的样品中的热裂纹，研究了Fe-Ni合金的热裂纹行为。根据临界应变和裂纹扩展长度作为镍含量和冷侧温度的函数，可以可靠地评估对热裂纹的敏感性。脆性温度区域的晶粒尺寸和形状取决于在温度梯度下由于溶质在液相界内的扩散而引起的液相界迁移。 Fe-Ni合金对热裂纹的敏感性很高，这可以解释为由于晶界附近的高硫偏析和由于液相界的快速迁移而在固/液共存区域内的大晶粒尺寸。

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来源
《ISIJ international》 |2003年第1期|p.54-62|共9页
作者
Joo Dong LEE;
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作者单位

Steel Making Research Group, Technical Research Laboratories, Pohang Iron & Steel Co. Ltd., Pohang P.O. Box 36, Koedong-dong, Nam-ku, Pohang, Kyungbuk, 790-785, South Korea;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类黑色金属材料;钢铁冶炼（黑色金属冶炼）（总论）;
关键词
hot cracking; continuous casting; Fe-Ni alloys; grain growth; sulfur segregation; direct observation of hot cracking; temperature-gradient tensile test;

机译：热裂连铸;铁镍合金谷物生长硫偏析;直接观察热裂;温度梯度拉伸试验;

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机译：y'相强化Fe-Ni基奥氏体合金中双晶界的氢致开裂行为
2. Direct observation of martensitic reversion from lenticular martensite to austenite in Fe-Ni alloy [J] . Nakada Nobuo Materials Letters . 2017,第JANa15期

机译：直接观察铁镍合金中马氏体由透镜状马氏体向奥氏体的回复
3. In-situ observation of transformation behavior in high-purity Fe-Ni alloys [J] . Takeshi Hidaka, Kenji Abiko Materials transactions . 2000,第1期

机译：高纯Fe-Ni合金相变行为的原位观察
4. STUDY OF LIQUATION-INDUCED CRACK FORMATION IN A HIGH-TEMPERATURE FE-NI ALLOY DURING HOT ROLLING [C] . Shih-Ming Kuo, Ming-Yen Li, Yeong-Tsuen Pan Materials Science and Technology Conference . 2013

机译：热轧期间高温Fe-Ni合金中液化裂纹形成的研究
5. Microstructure and magnetic behavior studies of processing-controlled and composition-modified Fe-Ni and Mn-Al alloys. [D] . Geng, Yunlong. 2014

机译：加工控制和成分改性的Fe-Ni和Mn-Al合金的微观结构和磁行为研究。
6. Comparison of the Cracking Behavior of Powder Metallurgy and Ingot Metallurgy Ti-5Al-5Mo-5V-3Cr Alloys during Hot Deformation [O] . Qinyang Zhao, Fei Yang, Rob Torrens, 2019

机译：粉末冶金和铸锭Ti-5Al-5Mo-5V-3Cr合金热变形过程中的开裂行为比较
7. Hot Cracking Behavior of Fe-Ni Alloys via Direct Observation. [O] . Joo Dong Lee 2003

机译：直接观察Fe-Ni合金的热裂化行为。

Hot Cracking Behavior of Fe-Ni Alloys via Direct Observation

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