naa a22 4500 510823025 CHVBK 20180411083542.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s12541-013-0289-2 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0289-2 Effect of nonmetallic inclusions on cold crack susceptibility of armor casting steel weld metal [Elektronische Daten] [Soon-Cheol Park, Yong-Jun Lee, Hui-Jun Yi, Geum-Bin Yu, Sung-Su Kang] The effects of the nonmetallic inclusion and toughness on cold crack susceptibility were studied using high-strength armor grade casting steel. The cold cracking susceptibility of armor grade casting steel was evaluated using the newly proposed multi-layer weld cracking test and two different tempering conditions were granted for casting steel toughness. The results showed that nonmetallic inclusion is acted as the cold crack initiation place and cold crack was developed and propagated along with nonmetallic inclusions and connected with other cold cracks. Also, voids, which were created that nonmetallic inclusions were moved to the weld metal and vicinities because of welding heat input were acted as the initiation point for cold crack on casting steel weldment. Toughness gave effects on cold crack initiation and propagation. Even tough, some voids and nonmetallic inclusions were placed on the HAZ and some micro cracks were observed around voids. Higher level of toughness weldment did have resistance to the cold crack. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Nonmetallic inclusion nationallicence Cold crack nationallicence Void nationallicence Casting steel welding nationallicence Diffusion nationallicence Park Soon-Cheol Department of Mechanical Engineering, Pusan National University, 609-735, Busan, Korea aut Lee Yong-Jun Department of Mechanical Engineering, Pusan National University, 609-735, Busan, Korea aut Yi Hui-Jun Department of Mechanical Engineering, Pusan National University, 609-735, Busan, Korea aut Yu Geum-Bin Department of Mechanical Engineering, Pusan National University, 609-735, Busan, Korea aut Kang Sung-Su Department of Mechanical Engineering, Pusan National University, 609-735, Busan, Korea aut International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/12(2013-12-01), 2137-2142 2234-7593 14:12<2137 2013 14 12541 https://doi.org/10.1007/s12541-013-0289-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0289-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Park Soon-Cheol Department of Mechanical Engineering, Pusan National University, 609-735, Busan, Korea aut NATIONALLICENCE 700 1- Lee Yong-Jun Department of Mechanical Engineering, Pusan National University, 609-735, Busan, Korea aut NATIONALLICENCE 700 1- Yi Hui-Jun Department of Mechanical Engineering, Pusan National University, 609-735, Busan, Korea aut NATIONALLICENCE 700 1- Yu Geum-Bin Department of Mechanical Engineering, Pusan National University, 609-735, Busan, Korea aut NATIONALLICENCE 700 1- Kang Sung-Su Department of Mechanical Engineering, Pusan National University, 609-735, Busan, Korea aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/12(2013-12-01), 2137-2142 2234-7593 14:12<2137 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer