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Keywords boron steel;hardenability;excess Ti; 硼钢;淬透性;过剩钛;
Keywords boron steel;hardenability curie;multiplying factor of hardenability;ideal critical diametre; 关键词硼钢;淬透性曲线;淬透系数;理想临界直径;
Keywords boron steel;effective titanium;austenite gain size;grain coarsening temperature; 硼钢;有效钛;奥氏体晶粒度;晶粒粗化温度;
Keywords boron steel;austenite grain;grain coarsening temperature;hot rolling technology; 硼钢;奥氏体晶粒;粗化温度;热轧工艺;
This thesis analyses the hardenability curve of boron steel and on this basis advances the method of caculation to forecast boron steel hardenability . 对硼钢淬透性曲线特点进行了分析，在此基础上提出了预测硼钢淬透性的计算方法。
This thesis analyses the hardenability curve of boron steel and on this basis advances the method ofcaculation to forecast boron steel hardenability . 对硼钢淬透性出线特点进行了分析，在此基础上提出了预测硼钢淬透性的计算方法。
The Influences of Ti content on austenite gain size and grain coarsening temperature in medium-carbon boron steel have been investigated. 研究了钛含量对中碳硼钢奥氏体晶粒度及晶粒粗化温度的影响。
The results show that the hardenability of boron steel can be predicted more accurately using artificaial neural network.The neural network provides an effective meth... 结果表明:所建网络能较准确预测硼钢淬透性,这为研究硼钢淬透性提供了一种有效的方法。
Keywords Boron;Microalloy Steel;Dynamic Recrystallization;Model; 硼;微合金钢;动态再结晶;模型;
Simulating different solidification cooling rate with step-metal mould and sand mould,the effect of solidification cooling rate on microstructure and properties of high boron steel were studied. 利用阶梯型腔金属模和砂型模拟不同的冷却速度,研究了冷却速度对高硼钢凝固组织和性能的影响。
Simulating different solidification cooling rate with step-metal mould and sand mould, the effect of solidification cooling rate on microstructure and properties of high boron steel were studied. 摘要利用阶梯型腔金属模和砂型模拟不同的冷却速度，研究了冷却速度对高硼钢凝固组织和性能的影响。
Keywords boron trifluoride;alkane t isomerization; 三氟化硼;烷烃;异构化反应;
Keywords boron;magnesite;spectrphotometry;nitroge; 硼;镁砂;分光光度法;姜黄素;
Hot stamping with die quenching of boron steels appeared at the end of 1990s for producing some rather simple automotive parts like door beams and bumper beams. 用硼钢热冲压和模具冷却的工艺出现在90年代后期，起初是用于制造一些相对简单的汽车部件，如门梁和保险杠。
The tensile strength of boron steels is up to 1,600 MPa (about 230 KSI), which is far above that of the highest-strength conventional cold stamping steels. 零件具有超高强度，反弹性小且材料厚度降低的特点（见图2）。硼钢的拉伸强度可以达到1600MPa,远远高于普通冷冲压钢材的最高强度。
Keywords boron hydride;abinitio molecular theory;atomic cluster; 硼烷;量子化学从头算;原子簇;
Keywords boron;borate;boride;new type boron-containing materials; 硼;硼酸盐;硼化物;含硼新型材料;
Keywords boron;azomethine-H;synthesis;analysis;soil;plant; 硼;甲亚胺-H;分析;合成;土壤;植物;
Keywords Boron hydrate;Immigrating form;Salt lake brine;Boron o; 硼氢化物;迁移形式;盐湖卤水;硼矿床;
Keywords boron;auxin;cytokinins;apical dominance;pea plants; 硼;生长素;细胞分裂素;顶端优势;豌豆;