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SCIE SCOPUS
HY180 강의 미세조직 및 기계적 성질에 미치는 오스테나이징처리 조건의 영향
Research Paper - Transformations - : Effect of Austenizing Treatment Condition on Microstructures and Mechanical Properties of HY180 Steels
남태현(Tae Hyun Nam), 조규봉(Gyu Bong Cho), 허경철(Gyeong Chul Hur), 안인섭(In Shup Ahn)
UCI I410-ECN-0102-2009-580-007397438

Effect of grain size and inclusions on tensile strength and the Charpy V-notch impact absorption energy of HY180 steels has been investigated by means of optical microscopy, energy dispersive X-ray spectrometry, scanning electron microscopy, tensile tests and Charpy V-notch impact tests. Grain growth during austenizing treatments in Ti-modified alloy was smaller than that in Ti-unmodified alloy. and consequently Ti addition was very effective to grain refinements of HY180 steels. Inclusions containing Ti and S were formed in Ti-modified alloy, while MnS in Ti-unmodified alloy. Tensile strength decreased with raising austenizing temperature, which was attributed to the grain growth. The Charpy V-notch impact absoprtion energy of Ti-unmodified alloy increased with rasing austenizing temperature, while it kept almost constant in Ti-modified alloy, although grain size of the alloy increased.

[자료제공 : 네이버학술정보]
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