共被期刊论文引用了3次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 硼和磷对铁镍基变形高温合金组织和持久性能的影响显示文摘利用真空冶炼炉制备铁镍基变形高温合金,采用光学显微镜(OM)和扫描电子显微镜(SEM)观察标准热处理后B、P微合金化的微观组织。发现B和P对晶粒度的影响较小,B含量的增加可以显著增加MC碳化物的析出。当P含量在0.003%至0.005%时,B含量从0.016%降至0.005%,可以将合金在700℃/400MPa,700℃/425MPa下持久寿命提高至3.8倍。当B含量为0.005%,P含量从0.005%升至0.023%时,对持久性能影响较小。B、P的最佳控制量应在0.005%和0.023%附近。B、P在晶界处附近会产生竞争偏析,硼化物对于晶界有钉压作用,P可以阻碍位错运动,进而阻碍合金裂纹扩展。适量的B、P含量可以延长合金的持久寿命。 | 姜壹夫 肖旋 秦学智 | 2016 | 沈阳理工大学学报2016，35，6： | 2 |
| 2 | Thermal Stability of a New Ni-Fe-Cr Base Alloy with Different Ti/Al Ratios显示文摘Influence of Ti/Al ratios on the thermal stability of a new low cost Ni-Fe-Cr base wrought alloy,designed for application at 700℃ in advanced ultra-supercritical coal-fired power plants(700℃A-USC),was investigated both experimentally and thermodynamically. After standard heat treatment,the alloys with different Ti/Al ratios had the same microstructural characteristics. However,compared with the alloys with high Ti/Al ratio,the low Ti/Al ratio can increase the γ'-solvus temperature,decrease γ' coarsening rate and reduce the temperature range of η phase precipitation. For the alloys with low Ti/Al ratio,the yield strength has no obvious decrease during long-term thermal exposure at 700 and 750℃,but after thermal exposure at 750℃ for 5000 h,the yield strength of the alloys with high Ti/Al ratio obviously decreases due to the η phase precipitation. The influence of h phase on mechanical properties is related with its size. When the h phase is small,it has no obvious influence on mechanical properties,but h phase becomes the crack initiation site with the further growth of η phase. It can be concluded that the decrease in Ti/Al ratio can improve the thermal stability to meet the requirement of 700℃ A-USC coal-fired power plants. | Changshuai Wang Tingting Wang Meilin Tan Yongan Guo Jianting Guo Lanzhang Zhou | 2015 | Journal of Materials Science & Technology2015，31，2： | 0 |
| 3 | Effect of Heat Treatment on Microstructure and Stress Rupture Properties of a Ni–Mo–Cr–Fe Base Corrosion-Resistant Superalloy显示文摘The influences of heat treatment and test condition on the microstructure and stress rupture properties of a Ni–Mo–Cr–Fe base corrosion-resistant superalloy have been investigated in this paper. Optical microscope and scanning electron microscope were employed for the microstructure observation, and X-ray diffraction, electron probe micro-analyzer, and transmission electron microscope were used for phase determination. It was found that the grain size increased and the volume fractions of initial M_6C carbides decreased along with the increase in solution treatment temperature. When tested at 650 °C/320 MPa, the stress rupture lives decreased with the increase in solution treatment temperature, but the stress rupture lives increased slightly at first and then decreased for the samples solution heat treated at 1220 °C when tested at 700 °C/240 MPa. The elongations showed the descendent trends under these two conditions. The stress rupture life and elongation for the aged samples all showed a noticeable improvement at 650 °C/320 MPa, but there was no noticeable improvement at 700 °C/240 MPa. The reasons can be attributed to the grain size, test conditions, and the initial and secondary carbides. | Tao Liu Mei Yang Jun-Song Wang Jia-Sheng Dong Li Wang Lang-Hong Lou | 2019 | Acta Metallurgica Sinica(English Letters)2019，32，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员