CAJ | 학술논문

针对高强耐热的稀土镁合金净化困难、稀土元素损耗大的问题,采用自行开发的熔剂JDRJ-6对GW103K合金进行精炼,研究了不同YCl_3含量的熔剂对合金净化效果及Y元素损耗率的影响,并与熔剂JDMJ及RJ-6的综合效果进行了比较.结果表明,经熔剂JDRJ-6+2.5%的YCl_3精炼后,Y元素的损耗率和腐蚀速率分别下降至18.12%和0.837 mg·cm~(-2)·d~(-1),而抗拉强度、伸长率则分别提高至226.25 MPa和4.86%,达到了预期的净化效果.
침대고강내열적희토미합금정화곤난、희토원소손모대적문제,채용자행개발적용제JDRJ-6대GW103K합금진행정련,연구료불동YCl_3함량적용제대합금정화효과급Y원소손모솔적영향,병여용제JDMJ급RJ-6적종합효과진행료비교.결과표명,경용제JDRJ-6+2.5%적YCl_3정련후,Y원소적손모솔화부식속솔분별하강지18.12%화0.837 mg·cm~(-2)·d~(-1),이항랍강도、신장솔칙분별제고지226.25 MPa화4.86%,체도료예기적정화효과.
Aiming at the difficulty in purifying the high strength and heat resistant RE magnesium alloy and in mass loss of RE in the alloy, we have developed a flux JDRJ-6 to refine the Mg-Gd-Y (GW103K) alloy to understand effects of the flux containing varied YCl_3 content on purification and mass loss of Y element, and it is compared with JDMJ flux and RJ-6 flux. The results reveal that after refined by JDRJ-6+2.5%YCl_3, the loss of Y and corrosion rate of the alloy are decreased to 18.12% and 0.837 mg·cm~(-2)·d~(-1), respectively, while the tensile strength and elongation are improved to 226.25MPa and 4.86%, respectively, obtaining the expected results.