PMID- 37374410 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230701 IS - 1996-1944 (Print) IS - 1996-1944 (Electronic) IS - 1996-1944 (Linking) VI - 16 IP - 12 DP - 2023 Jun 7 TI - The Effect of Boron (B) and Copper (Cu) on the Microstructure and Graphite Morphology of Spheroidal Graphite Cast Iron. LID - 10.3390/ma16124225 [doi] LID - 4225 AB - This study examines the impacts of copper and boron in parts per million (ppm) on the microstructure and mechanical properties of spheroidal graphite cast iron (SCI). Boron's inclusion increases the ferrite content whereas copper augments the stability of pearlite. The interaction between the two significantly influences the ferrite content. Differential scanning calorimetry (DSC) analysis indicates that boron alters the enthalpy change of the alpha + Fe3C --> gamma conversion and the alpha --> gamma conversion. Scanning electron microscope (SEM) analysis confirms the locations of copper and boron. Mechanical property assessments using a universal testing machine show that the inclusion of boron and copper decreases the tensile strength and yield strength of SCI, but simultaneously enhances elongation. Additionally, in SCI production, the utilization of copper-bearing scrap and trace amounts of boron-containing scrap metal, especially in the casting of ferritic nodular cast iron, offers potential for resource recycling. This highlights the importance of resource conservation and recycling in advancing sustainable manufacturing practices. These findings provide critical insights into the effects of boron and copper on SCI's behavior, contributing to the design and development of high-performance SCI materials. FAU - Ha, Jin-Su AU - Ha JS AD - Smart Manufacturing Technology R&D Group, Korea Institute of Industrial Technology, Daegu 42994, Republic of Korea. FAU - Hong, Ji-Woo AU - Hong JW AD - Smart Manufacturing Technology R&D Group, Korea Institute of Industrial Technology, Daegu 42994, Republic of Korea. FAU - Kim, Ji-Wook AU - Kim JW AD - Smart Manufacturing Technology R&D Group, Korea Institute of Industrial Technology, Daegu 42994, Republic of Korea. FAU - Han, Soo-Bin AU - Han SB AD - Smart Manufacturing Technology R&D Group, Korea Institute of Industrial Technology, Daegu 42994, Republic of Korea. FAU - Choi, Chang-Young AU - Choi CY AD - Smart Manufacturing Technology R&D Group, Korea Institute of Industrial Technology, Daegu 42994, Republic of Korea. FAU - Song, Hye-Jin AU - Song HJ AD - Smart Manufacturing Technology R&D Group, Korea Institute of Industrial Technology, Daegu 42994, Republic of Korea. FAU - Jang, Jin-Seok AU - Jang JS AUID- ORCID: 0000-0002-6801-9109 AD - Smart Manufacturing Technology R&D Group, Korea Institute of Industrial Technology, Daegu 42994, Republic of Korea. FAU - Kim, Dong-Yul AU - Kim DY AD - Gyeongbuk Research Institute of Vehicle Embedded Technology, Yeongcheon-si 38822, Republic of Korea. FAU - Ko, Dae-Cheol AU - Ko DC AUID- ORCID: 0000-0002-4064-739X AD - Department of Nanomechatronics Engineering, Pusan National University, Pusan 46241, Republic of Korea. FAU - Yi, Seong-Hoon AU - Yi SH AD - Department of Materials Science and Metallurgical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea. FAU - Cho, Yong-Jae AU - Cho YJ AD - Smart Manufacturing Technology R&D Group, Korea Institute of Industrial Technology, Daegu 42994, Republic of Korea. LA - eng GR - 20015706/Korea Evaluation Institute of Industrial Technology/ PT - Journal Article DEP - 20230607 PL - Switzerland TA - Materials (Basel) JT - Materials (Basel, Switzerland) JID - 101555929 PMC - PMC10301530 OTO - NOTNLM OT - boron OT - mechanical properties OT - microstructure OT - pearlite OT - spheroidal graphite cast iron COIS- The authors declare no conflict of interest. EDAT- 2023/06/28 06:42 MHDA- 2023/06/28 06:43 PMCR- 2023/06/07 CRDT- 2023/06/28 01:26 PHST- 2023/05/08 00:00 [received] PHST- 2023/05/28 00:00 [revised] PHST- 2023/06/05 00:00 [accepted] PHST- 2023/06/28 06:43 [medline] PHST- 2023/06/28 06:42 [pubmed] PHST- 2023/06/28 01:26 [entrez] PHST- 2023/06/07 00:00 [pmc-release] AID - ma16124225 [pii] AID - materials-16-04225 [pii] AID - 10.3390/ma16124225 [doi] PST - epublish SO - Materials (Basel). 2023 Jun 7;16(12):4225. doi: 10.3390/ma16124225.