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starting melt temperature
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  相似匹配句对
     Starting with B.B.O.
     本文从B.B.O.
短句来源
     asynchronous starting;
     异步起动;
短句来源
     Melt the Blue
     融合之蓝
短句来源
     ON FLUID-MELT INCLUSIONS
     流体熔融包裹体
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     b) Higher overheating temperature of the melt;
     b)提高熔体处理温度;
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Partial melting experiments at high temperature and high pressure in combination with thepetrochemistry data show that the starting melting temperature of rocks tends to increase with in-crcasing FeO' +MgO+CaO+TiO2 and Al2O3 and decreasing K2O+Na2O and SiO2 in an anhydroussystem. Moreover, the starting melting temperature of rocks is also controlled by metamorphic de-gree, pressure and some other factors. The relationship between REE and rock partial melting isalso discussed in...

Partial melting experiments at high temperature and high pressure in combination with thepetrochemistry data show that the starting melting temperature of rocks tends to increase with in-crcasing FeO' +MgO+CaO+TiO2 and Al2O3 and decreasing K2O+Na2O and SiO2 in an anhydroussystem. Moreover, the starting melting temperature of rocks is also controlled by metamorphic de-gree, pressure and some other factors. The relationship between REE and rock partial melting isalso discussed in the paper. The partition of metallic elements between melt and remains showsthat the major elements are relatively concentrated in the melt body and their differentiation degree(gDi )between melt and remains tends to increase with decreasing SiO2 and increasing basic com-ponents; trace metallic elements follows a partition law very different from and more complicatedthan the major metallic elements.

高温高压熔融实验结合岩石化学分析研究表明:在无水体系中,变形变质岩的初熔温度随FeO+MgO+CaO十TiO2、Al2O3等的增高而增高;随SiO2、K2O十NaO含量的增高而降低。此外,岩石的变形变质程度、压力也对岩石的初烙产生重大影响。本文还初步探讨了REE与岩石熔融的关系。金属元素在熔体与残留体的分配研究表明:常量金属元素在蒋体中相对富集,在熔体与残留体之间的分异度(随SiO2的降低、基性组分的增高而增高;微量金属元素具有与常量金属元素相差较大且较复杂的分配规律。

The effect of solidified structure characteristics on heat treated structures and rupture properties was studied in CMSX 2 single crystals with different arm spacing. The results show that, refining of solidified structures enhances the uniform degree of alloy structures, then improves the starting melting temperature of superalloy during solution treatment efficiently. In addition, structure refining can improve effect of heat treatment on rupture properties. The positive effect of superfining of solidified...

The effect of solidified structure characteristics on heat treated structures and rupture properties was studied in CMSX 2 single crystals with different arm spacing. The results show that, refining of solidified structures enhances the uniform degree of alloy structures, then improves the starting melting temperature of superalloy during solution treatment efficiently. In addition, structure refining can improve effect of heat treatment on rupture properties. The positive effect of superfining of solidified structures on mechanical properties of CMSX 2 superalloy is affirmed sufficiently by the experiment result in which the rupture lives of superfine dendrite single crystals are about 1.45 and 1.85 times those of the coarse dendrite single crystals respectively, in as cast and heat treatment condition.

对具有不同枝晶间距的CMSX 2单晶高温合金的凝固组织特征及其对热处理组织和持久性能的影响进行了研究。考察了不同温度下不同枝晶间距组织的固溶情况及热处理后的组织均匀性 ,测试了持久性能。结果表明 :随着凝固组织的细化 ,合金的组织均匀性得到提高 ,从而有效提高了合金的固溶温度 ,增大了热处理均匀化效果 ;CMSX 2合金铸态超细组织单晶的持久寿命是粗枝晶单晶的 1.4 5倍 ,热处理态超细枝晶单晶的持久寿命是粗枝晶单晶的 1.85倍。单晶高温合金组织超细化是显著提高合金高温力学性能的有效手段

In order to accurately control the proportion of solid phase and liquid phase, the start melting temperature and end melting temperature of SiCw/LD2 composite and LD2 alloy were measured by DSC at heating rates of 5, 10, 50 ℃/min, and it was found that the start melting temperature and end melting temperature of SiCw/LD2 composite are lower than those of LD2 alloy, and due to the ununiform distribution of alloy elements in SiCw/LD2 composite, melting starts at...

In order to accurately control the proportion of solid phase and liquid phase, the start melting temperature and end melting temperature of SiCw/LD2 composite and LD2 alloy were measured by DSC at heating rates of 5, 10, 50 ℃/min, and it was found that the start melting temperature and end melting temperature of SiCw/LD2 composite are lower than those of LD2 alloy, and due to the ununiform distribution of alloy elements in SiCw/LD2 composite, melting starts at lower temperatures in the region where alloy elements concentration is higher. The melting kinetics was calculated by the absorption quantity of heat for per mass of materials during the melting process. The melting of composites is faster than that of aluminum alloy, because there are a lot of interfaces between SiC whiskers and aluminum and high density of dislocations in the composite, therefore much energy was accumulated in the composite to increase the melting rate.

为了准确控制两相区变形时固液两相的比例,首次采用热分析法研究了SiCw/LD2复合材料的加热熔化过程,根据热分析曲线确定了SiCw/LD2复合材料和LD2铝合金在5、10、50℃/min加热条件下的熔化起始温度和熔化终了温度,并根据单位质量材料在熔化时的吸热量计算了熔化动力学过程.研究表明:复合材料的熔化起始温度和熔化终了温度均低于铝合金;复合材料的熔化速度比铝合金快,尤其在熔化初始阶段表现得更加明显.

 
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