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借助金相显微镜、X射线衍射仪、扫描电子显微镜和能谱仪等探讨了不同烧结温度对一种粉末冶金镍基高温合金(Ni-Cr-FeAl-Mn-Cu-Mo-Ti-Si)的组织及力学性能的影响。结果表明,烧结温度影响合金的微观组织形态,随着烧结温度的提高,合金硬度和抗压强度呈现先升高后降低的趋势,当烧结温度为1330℃时,合金具有最高硬度值(253.2 HV0.3)和最好的抗压性能(992.7 MPa)。同时,烧结温度的高低将直接影响强化相和有害相的析出。
The effects of different sintering temperature on the microstructure of a powder metallurgy nickel-base superalloy (Ni-Cr-FeAl-Mn-Cu-Mo-Ti-Si) were investigated by means of metallographic microscope, X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. Effect of organization and mechanical properties. The results show that the sintering temperature affects the microstructure of the alloy. With the increase of the sintering temperature, the hardness and compressive strength of the alloy first increase and then decrease. When the sintering temperature is 1330 ℃, the alloy has the highest hardness (253.2 HV0 .3) and the best compressive strength (992.7 MPa). At the same time, the sintering temperature will directly affect the strengthening phase and the precipitation of harmful phase.