CAJ | 학술논문

采用不同的轧辊温度和速率制备AM50镁合金轧板，研究终轧工艺对镁板力学性能和织构特征的影响。研究表明：在轧辊温度为200°C和轧辊速率为5 m/min条件下制备的镁板的强度(极限抗拉强度：295 MPa；屈服强度：224 MPa)和伸长率(22.9%)之间达到较优组合；在热轧过程中，轧板的屈服强度主要取决于轧制温度，而织构强度则对轧辊速率更为敏感；提高轧制温度或轧辊速率均可改善AM50镁合金板材力学性能的各性异性。
채용불동적알곤온도화속솔제비AM50미합금알판，연구종알공예대미판역학성능화직구특정적영향。연구표명：재알곤온도위200°C화알곤속솔위5 m/min조건하제비적미판적강도(겁한항랍강도：295 MPa；굴복강도：224 MPa)화신장솔(22.9%)지간체도교우조합；재열알과정중，알판적굴복강도주요취결우알제온도，이직구강도칙대알곤속솔경위민감；제고알제온도혹알곤속솔균가개선AM50미합금판재역학성능적각성이성。
The conventional hot rolling of AM50 alloy at different roll temperatures and speeds was performed to investigate the effects of finish-rolling conditions on the mechanical properties and texture of rolled sheet. The better combination between strength (ultimate tensile strength:295 MPa;yield strength:224 MPa) and ductility (22.9%) can be obtained for the AM50 sheet rolled at the roll temperature of 200 °C with the roll speed of 5 m/min. The yield stress depends strongly on roll temperature, while the texture intensity in rolled sheets is more sensitive to roll speed during hot rolling. Increasing rolling temperature or roll speed can improve the mechanical anisotropy of AM50 rolled sheets.