| A Comparative Study of Various Flow Instability Criteria in Processing Map of Superalloy GH4742 | |
| Alternative Title | A Comparative Study of Various Flow Instability Criteria in Processing Map of Superalloy GH4742 |
| Zhou Ge1; Ding Hua1; Cao Furong1; Zhang Beijiang2 | |
| 2014 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 30Issue:3Pages:217-222 |
| Abstract | Hot compression tests were conducted on a Gleeble-1500D thermal simulating tester. Based on the deformation behavior and microstructural evolution of superalloy GH4742, different types of instability criteria of Prasad, Gegel, Malas, Murty and Semiatin were compared, and the physical significance of parameters was analyzed. Meanwhile, the processing maps with different instability criteria were obtained. It was shown that instability did not occur when average power dissipation rate was larger than 50% in the temperature range of 1020-1130 degrees C, corresponding to the strain rate range of 5 x 10(-4)-3.2 x 10(-3) s(-1). The domain is appropriate for the processing deformation of superalloy GH4742. |
| Other Abstract | Hot compression tests were conducted on a Gleeble-1500D thermal simulating tester. Based on the deformation behavior and microstructural evolution of superalloy GH4742, different types of instability criteria of Prasad, Gegel, Malas, Murty and Semiatin were compared, and the physical significance of parameters was analyzed. Meanwhile, the processing maps with different instability criteria were obtained. It was shown that instability did not occur when average power dissipation rate was larger than 50% in the temperature range of 1020- 1130 ℃, corresponding to the strain rate range of 5 × 10~(-4)-3.2 × 10~(-3) s~(-1). The domain is appropriate for the processing deformation of superalloy GH4742. |
| Keyword | SLOW COOLING TREATMENT DEFORMATION-BEHAVIOR HOT DEFORMATION TITANIUM-ALLOY MICROSTRUCTURE GH4742 superalloy Hot compression tests Flow instability criterion Processing map |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Key Basic Research Program of China] |
| CSCD ID | CSCD:5089390 |
| Citation statistics |
Cited Times:15[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/144120 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国科学院金属研究所 2.Cent Iron & Steel Res Institute, High Temp Mat Div, Beijing 100081, Peoples R China |
| Recommended Citation GB/T 7714 | Zhou Ge,Ding Hua,Cao Furong,et al. A Comparative Study of Various Flow Instability Criteria in Processing Map of Superalloy GH4742[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2014,30(3):217-222. |
| APA | Zhou Ge,Ding Hua,Cao Furong,&Zhang Beijiang.(2014).A Comparative Study of Various Flow Instability Criteria in Processing Map of Superalloy GH4742.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,30(3),217-222. |
| MLA | Zhou Ge,et al."A Comparative Study of Various Flow Instability Criteria in Processing Map of Superalloy GH4742".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 30.3(2014):217-222. |
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