| delta-Ferrite Formation and Its Effect on the Mechanical Properties of Heavy-Section AISI 316 Stainless Steel Casting | |
| Wang, Qiyu1,2; Chen, Shenghu1; Rong, Lijian1 | |
| Corresponding Author | Chen, Shenghu(chensh@imr.ac.cn) |
| 2020-06-01 | |
| Source Publication | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
 |
| ISSN | 1073-5623 |
| Volume | 51Issue:6Pages:2998-3008 |
| Abstract | delta-Ferrite formation across the thickness of a heavy-section AISI 316 casting slab and the effect of its decomposition on the bending properties have been studied. Cellular-shaped delta-ferrite with the faction of less than 3 pct is observed at the surface position of the cast while skeletal-shaped delta-ferrite with the faction of up to 8 pct is present at the center position, which is attributed to the combined effects of macro-segregation and cooling rate. Extensive decompositions of delta-ferrite through direct transformation (delta -> sigma) and eutectoid transformation (delta -> sigma + gamma(2)) are demonstrated. Micro-cracks could be observed within the decomposed delta-ferrite on the convex surface of bending samples from both the surface and center position of the cast, but occurrence of cracking is only present in the sample from center position of the cast. Removal of the brittle sigma phase within delta-ferrite by a preheat treatment at 1050 degrees C could effectively improve the bending performance. |
| DOI | 10.1007/s11661-020-05717-0 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000533464200032 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/138729 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Chen, Shenghu |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Qiyu,Chen, Shenghu,Rong, Lijian. delta-Ferrite Formation and Its Effect on the Mechanical Properties of Heavy-Section AISI 316 Stainless Steel Casting[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2020,51(6):2998-3008. |
| APA | Wang, Qiyu,Chen, Shenghu,&Rong, Lijian.(2020).delta-Ferrite Formation and Its Effect on the Mechanical Properties of Heavy-Section AISI 316 Stainless Steel Casting.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,51(6),2998-3008. |
| MLA | Wang, Qiyu,et al."delta-Ferrite Formation and Its Effect on the Mechanical Properties of Heavy-Section AISI 316 Stainless Steel Casting".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 51.6(2020):2998-3008. |
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