固溶制度对Ti60合金轧棒组织和性能的影响  

Effects of Solution Process on Microstructure and Properties of Ti60 Rolling Rod

作　　者：孙虎代 黄帆 张伟[1] 陶海林[1] 郭佳林[2] 王新[2] SUN Hu-dai;HUANG Fan;ZHANG Wei;TAO Hai-lin;GUO Jia-lin;WANG Xin(Baoji Titanium Industry Co.,LTD,Baoji 721000,China;Baoti Group Co.,Ltd,Baoji 721000,China)

机构地区：[1]宝鸡钛业股份有限公司,宝鸡721000 [2]宝钛集团有限公司,宝鸡721000

出　　处：《世界有色金属》2023年第10期126-128,共3页World Nonferrous Metals

摘　　要：在α+β两相区研究了固溶温度、冷却方式对Ti60合金轧制棒材组织和力学性能的影响。结果表明,随着固溶温度的升高,组织中等轴α相含量减少,板条状α相消失,次生α相含量增加;试样的拉伸强度略有增加,塑性变化不明显。随着冷却速率的降低,片状α的厚度,α集束的尺寸以及晶界α的厚度增加;试样的室温拉伸强度及550℃高温强度均降低。试样最优热处理制度为1010℃保温2h,空冷+700℃保温2h,空冷。The effects of solution temperature and cooling mode on the microstucture and mechanical properties of Ti60 alloy are studied in the area ofα+β.The results show that,With the increase of solution temperature,the content of equiaxedαphase decreased,the slatαphase disappeared,and the content of secondaryαphase increased;The tensile strength of the sample increased slightly,and the plastic change was not obvious.With the decrease of the cooling rate,the thickness of the lath-shapedα,the size of theαbundle and the thickness of the grain boundaryαincreased;The tensile strength of the sample at room temperature and 550℃were reduced.The optimal heat treatment process of the sample is 1010℃for 2h,air cooling+700℃for 2h,air cooling.

关 键 词：Ti60轧棒 固溶温度 冷却方式 组织和性能 

分 类 号：TG161[金属学及工艺—热处理]