[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f4Xy7ulwQas8e4BAdmUCAJjicPOkNkuI9WNAUZ1w0KG0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":16,"related":17,"source":27,"type":34},[],"2023-05-10 20:03:39",12311145,[8,9],"对","错",{"courseId":11,"courseImg":12,"courseName":13,"workId":14,"workName":15},"1000006964","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F002982ab7e4e9dc952bb725532ff7174.jpg","材料科学基础（中南大学）","6887221","材料科学基础（中南大学）教程考试","获得金属的非晶合金的基本方法是快速冷却",[18,29,35,45,50,59,67,75,84,87],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],12311103,[22,23,24,25],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F923ab895ca5bd5d11d4338da439dc834.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fba884cbe97868711632a9ca3047ccbe0.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc8d6720ffb1e75385303698669308047.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbee6f891a287db3a78c79776d531faff.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7a271c33f45a5a1a0ef3a7d0169a435f.png\">","v2",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":33,"source":27,"type":34},[],12311104,[8,9],"金属经过铸造后加热到一定温度就会发生回复再结晶过程",3,{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":27,"type":44},[],12311105,[39,40,41,42],"L1→a+L2叫偏晶反应","b→L+a称为熔晶转变","反应a1→a2+b称为偏析反应","a+b®g称为包析反应","在二元相图中,以下反应正确的是( )",1,{"answer":46,"createTime":5,"id":47,"options":48,"question":49,"source":27,"type":34},[],12311113,[8,9],"再结晶刚结束的晶粒大小,与该金属在再结晶加热前的冷加工变形量没有关系",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":27,"type":44},[],12311129,[54,55,56,57],"莱氏体的含碳量是4.3%","亚共晶白口铸铁的平衡组织是莱氏体Ld,莱氏体Ld的相组成物是A+ Fe3C","室温下变态莱氏体的相组成物是F+Fe3C","室温下变态莱氏体的相组成物是P+Fe3C +Fe3CII","依据Fe-Fe3C相图,说法正确的有( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":58,"source":27,"type":44},[],12311135,[63,64,65,66],"共析反应后的生成物称为珠光体P,含碳量是0.77%","珠光体是由铁素体F和渗碳体组成的两相混合物","在常温下,亚共析钢的平衡组织是P+F","在常温下,过共析钢的平衡组织是P+Fe3C",{"answer":68,"createTime":5,"id":69,"options":70,"question":58,"source":27,"type":44},[],12311136,[71,72,73,74],"含碳量小于0.0218%的合金称为钢,大于4.3%为铸铁","铁碳合金室温平衡组织均由P和Fe3C两个基本相组成","根据溶质原子的位置,奥氏体其晶体结构是FCC,是间隙固溶体,铁素体是间隙固溶体,其晶体结构是BCC晶体结构","合金平衡结晶时,奥氏体的最大含碳量是2.11%",{"answer":76,"createTime":5,"id":77,"options":78,"question":83,"source":27,"type":28},[],12311137,[79,80,81,82],"从低浓度区域向高浓度区域","从高浓度区域向低浓度区域","从高温区域向低温区域","从低温区域向高温区域","逆扩散(上坡扩散)是( )进行扩散",{"answer":85,"createTime":5,"id":6,"options":86,"question":16,"source":27,"type":34},[],[8,9],{"answer":88,"createTime":5,"id":89,"options":90,"question":91,"source":27,"type":34},[],12311159,[8,9],"无序固溶体转变为有序固溶体时,合金性能变化的一般规律是强度和硬度提高,塑性降低,导电性降低"]