本文關(guān)鍵詞： 生物鎂合金 固溶處理 微觀組織 力學(xué)性能　出處：《材料熱處理學(xué)報(bào)》2017年06期 　論文類型：期刊論文

【摘要】：通過(guò)合金的制備,微觀組織的觀察以及力學(xué)性能的測(cè)試,研究了固溶溫度以及固溶時(shí)間對(duì)醫(yī)用生物鎂合金Mg-3Zn-1Y-0.6Zr-0.5Ca組織和性能的影響,選擇出最佳的熱處理工藝。結(jié)果表明:提高固溶溫度和延長(zhǎng)保溫時(shí)間都能夠使第二相溶質(zhì)原子充分溶進(jìn)鎂基體,增大固溶度,從而提高合金的抗拉強(qiáng)度,但會(huì)使合金的塑性下降。本實(shí)驗(yàn)合金經(jīng)過(guò)460℃固溶24 h后,抗拉強(qiáng)度達(dá)到210 MPa,伸長(zhǎng)率達(dá)到11.7%,大大提高了鑄態(tài)生物鎂合金的力學(xué)性能。
[Abstract]:The alloy was prepared, the microstructure was observed and the mechanical properties were tested. The effects of solution temperature and solution time on the microstructure and properties of biomedical magnesium alloy Mg-3Zn-1Y-0.6Zr-0.5Ca were studied. The optimum heat treatment process is selected. The results show that the second phase solute atom can be fully dissolved into the magnesium matrix and the solution degree can be increased by increasing the solution temperature and prolonging the holding time, thus improving the tensile strength of the alloy. After 24 h solution at 460 鈩，

本文編號(hào)：1443543