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Gd含量对固溶处理Mg-xGd-3Y-0.5Zr合金组织与动态力学性能的影响 被引量:4
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作者 王雪兆 王优强 +3 位作者 倪陈兵 房玉鑫 于晓 张平 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2022年第7期2177-2189,共13页
采用金相显微镜、X射线衍射、扫描电子显微镜、分离式霍普金森压杆等手段,研究Gd含量(6.5%~8.5%,质量分数)对Mg-xGd-3Y-0.5Zr合金显微组织与动力学行为的影响。观察铸态Mg-xGd-3Y-0.5Zr合金显微组织可知,Gd的加入可促进晶粒细化。由于... 采用金相显微镜、X射线衍射、扫描电子显微镜、分离式霍普金森压杆等手段,研究Gd含量(6.5%~8.5%,质量分数)对Mg-xGd-3Y-0.5Zr合金显微组织与动力学行为的影响。观察铸态Mg-xGd-3Y-0.5Zr合金显微组织可知,Gd的加入可促进晶粒细化。由于合金凝固时冷却速度快,在晶界处出现大量非平衡共晶相Mg_(24)(Gd,Y)_(5)。经过520℃固溶处理6h后,非平衡共晶相Mg_(24)(Gd,Y)_(5)融入基体中并产生稀土氢化物相(REH)。根据应力-应变曲线可知,不同Gd含量的固溶态Mg-xGd-3Y-0.5Zr合金在不同应变速率下均表现出优异的抗冲击性能。结果表明,Gd含量的变化、稀土氢化物粒子的聚集以及细小的动态析出相是影响Mg-xGd-3Y-0.5 Zr合金动态力学性能的关键因素。 展开更多
关键词 Mg-xGd-3Y-0.5Zr合金 显微组织 动态力学性能 稀土氢化物 动态析出相
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Adjustment Disorder in Female Breast Cancer Patients:Prevalence and Its Accessory Symptoms
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作者 Hai-yan TANG Hui-hua XIONG +3 位作者 Ling-chao DENG yu-xin fang Jun ZHANG Heng MENG 《Current Medical Science》 SCIE CAS 2020年第3期510-517,共8页
Women diagnosed with breast cancer may have serious psychological problems and will suffer from adjustment disorder(AjD).We investigated the prevalence of AjD in female breast cancer patients who were diagnosed within... Women diagnosed with breast cancer may have serious psychological problems and will suffer from adjustment disorder(AjD).We investigated the prevalence of AjD in female breast cancer patients who were diagnosed within 1 year and examined the severe life events they experienced,and the most common symptoms of AjD.342 newly diagnosed(<1 year)female breast cancer patients were recruited from Tongji Hospital and Hubei Cancer Hospital in Hubei,China,from July 2018 to May 2019.The patients completed the self-report questionnaire including demographic characteristics and the scale ADNM-20 for the diagnosis of AjD.SPSS20.0 was used for data analysis.As a result,the prevalence of AjD in breast cancer patients was 38.6%.Patients from rural areas and lacking of exercise were more likely to suffer from AjD(P<0.05).The prevalence of AjD in patients who did not regard breast cancer as the most severe life event was higher than that in patients who took breast cancer as the most severe life event(44.4%vs.33.9%,P<0.05;OR=1.728,95%CI=1.072-2.787).The symptom that scored highest was preoccupation(3.15).We found that the prevalence of AjD in women with breast cancer in this study is very high and warrants more attention.Patients from rural areas,lacking of exercise and subject to multiple stressors are more likely to suffer from AjD.The commonest and severe symptom is preoccupation. 展开更多
关键词 reast cancer ONCOLOGY adjustment disorder Adjustment Disorder New Module PREVALENCE FEMALE mental adjustment
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