| TC4-DT钛合金SH-CCT曲线的测定 | |
| Alternative Title | Measurement of SH-CCT curves of TC4-DT titanium alloy |
| 赵栋1; 董文超2; 焦清洋1; 权纯逸1; 陆善平2 | |
| 2020 | |
| Source Publication | 金属热处理
 |
| ISSN | 0254-6051 |
| Volume | 45.0Issue:005Pages:157-161 |
| Abstract | 通过金相法进行了TC4-DT钛合金相变点温度Tβ测定,并利用热膨胀法进行了验证。对不同冷却速度下TC4-DT钛合金的热膨胀量曲线进行测绘,结合显微组织分析和硬度测试,绘制了TC4-DT钛合金的SH-CCT曲线。结果表明,TC4-DT钛合金的相变温度为(945±5)℃。当冷速小于10℃/s时,由β相转变的α相呈不同取向的集束状,同时,晶内出现网篮状α相;当冷速大于10℃/s后,组织为马氏体α’相+块状αm相;当冷速超过100℃/s后,组织为马氏体α’相。TC4-DT钛合金发生马氏体转变的开始温度为836℃,终了温度为760℃。 |
| Other Abstract | The transformation temperature Tβof TC4-DT titanium alloy was measured by metallographic method,and verified by thermal expansion method. According to the expansion curves at different cooling rates,the SH-CCT curves of the TC4-DT titanium alloy were plotted by means of metallographic analysis and hardness test. The results show that the transformation temperature of the TC4-DT titanium alloy is( 945 ± 5) ℃ . When the cooling rate is less than 10 ℃/s,the α phase transformed from β phase is clustered with different orientations,and the net basket-like α phase appears. The microstructure is composed of martensite α phase and massive αmphase when the cooling rate is greater than 10 ℃/s. As the cooling rate exceeds 100 ℃/s,the martensite α’ phase is formed. The start temperature and the finish temperature of martensite transformation in the TC4-DT titanium alloy are 836 ℃ and 760 ℃,respectively. |
| Keyword | TC4-DT钛合金 热膨胀法 SH-CCT曲线 显微组织 相变 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:6738348 |
| Citation statistics |
Cited Times:1[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/157375 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.沈阳飞机工业(集团有限公司 2.中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | 赵栋,董文超,焦清洋,等. TC4-DT钛合金SH-CCT曲线的测定[J]. 金属热处理,2020,45.0(005):157-161. |
| APA | 赵栋,董文超,焦清洋,权纯逸,&陆善平.(2020).TC4-DT钛合金SH-CCT曲线的测定.金属热处理,45.0(005),157-161. |
| MLA | 赵栋,et al."TC4-DT钛合金SH-CCT曲线的测定".金属热处理 45.0.005(2020):157-161. |
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