[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fMSET-J179hHY1WxB5IaPi8FGI2LFtppbYGCjk2wjzDw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":31,"type":55},[],"2025-12-07 08:40:06",253286585,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},7,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_48670778","第五章 第三节 饰用钯及其合金材料","Ag-Pd合金在液相和固相均无限互溶,弥散强化效果突出,因此钯对银的强化作用很好",[19,33,42,50,56,61,64],{"answer":20,"createTime":21,"id":22,"options":23,"question":30,"source":31,"type":32},[],"2025-12-08 23:30:22",253286580,[24,25,26,27,28,29],"Cu","Ru","Co","Pb","Ni","Rh","Pt-Pd二元合金强度硬度偏低,因此往往需要添加下列哪些元素来提高强度硬度","v1",1,{"answer":34,"createTime":21,"id":35,"options":36,"question":41,"source":31,"type":32},[],253286581,[37,38,39,40],"工艺性能总体比金、银、铂等贵金属稍差","钯金首饰的检测鉴定标准尚不成熟","易出现质量问题,返修率较高","钯金报价透明度不高","钯金首饰的局限性有哪些",{"answer":43,"createTime":5,"id":44,"options":45,"question":49,"source":31,"type":32},[],253286582,[46,47,48],"提高合金的抗晦暗能力","形成更饱和的白色","固溶强化","Pd以纯Pd或Pd-Ag等中间合金的形式作为合金元素加入Au、Ag和Pt等合金中,主要有哪几个方面的作用",{"answer":51,"createTime":5,"id":52,"options":53,"question":54,"source":31,"type":55},[],253286583,[8,9],"铂合金熔炼不能采用石墨坩埚,因为在熔融状态下,Pt和某些合金元素(如Pd)能溶解大量的碳,而在合金凝固过程中碳又以纤维状或片状的石墨形态析出在晶界上,进而使合金变脆",3,{"answer":57,"createTime":5,"id":58,"options":59,"question":60,"source":31,"type":55},[],253286584,[8,9],"钯添加到金中降低了合金的熔点",{"answer":62,"createTime":5,"id":6,"options":63,"question":17,"source":31,"type":55},[],[8,9],{"answer":65,"createTime":21,"id":66,"options":67,"question":72,"source":31,"type":73},[],253286586,[68,69,70,71],"Ag与Pt中的Pt","Ag与Pt中的Ag","Ag与Pd中的Ag","Ag与Pd中的Pd","Ag与Pd,Ag与Pt两个组合,那一种组合中的哪种金属先被腐蚀",0]