TTT diagram is an important reference in making heat treatment procedure for steels. A program is introduced in this paper with which the TTT diagram of M30Mn2 steel is fitted through cubic spline treatment of the test data, and a precise and smooth TTT curve is auto drafted by programming ...
钢的TTT曲线测定方法研究
These powerful diagrams revolutionized the heat treatment of steel and other alloys. Grain boundaries and internal interfaces are now known to behave in a phase-like manner, referred to as 'complexions', and their transitions can be represented on TTT diagrams. We present experimental grain boundary...
1) TTT diagram TTT图1. The TTT diagram of H13 steel is investigated by full-automatic transformation test instrument (Formastor-Digital). 误码甲Formaster-Digital全自动相变仪测定了H13钢的退火用TTT图。2. The hardness method Was used to measure the TTT diagram of 6115 binitic steel. 用硬度...
I堕鐾 、:Investigationof TTTDiagramof S7Steel Abstract:TheTTTdiagramofS7steel wasinvestigatedbymeat3.sof full automatictransformaioatestinginstrumeat(Formasor—Digita1)andtheinflueace。f a Lloylagelement andausteaitiziagtemperatureDnTTTdiagramwasstudied.Theresultsc&nprovidethebasiaforsofteningaanea[...
UniversityofCambridge,PembrokeStreet,Cambridge,CB23QZ rm659@cam.ac.uk TTTdiagrams TTTdiagramstandsfor“time-temperature-transformation”diagram.Itis alsocalledisothermaltransformationdiagram Definition:TTTdiagramsgivethekineticsofisothermal transformations. 2 DeterminationofTTTdiagramforeutectoidsteel DavenportandBainwere...
TTT diagrams of the 0.27C-1Cr and 0.27C-1Cr-RE steels are established by means of dilatometric measurement for kinetic curves at different temperatures and metallographic inspections, and the influence of RE on the TTT diagram is studied. The addi- tion
素、奥氏体化温度对TTT曲线的影响.为s7钢的软化退失提供了依据。 关键谰点!翅÷!!I堕鐾 : 、 InvestigationofTTTDiagramofS7Steel Abstract:TheTTTdiagramofS7steelwasinvestigatedbymeat3.soffull automatictransformatioatesting instrumeat(Formastor—Di
itisconsideredthatseparationofupperandlowerbainitesinthebainiteCcurveisaccordancewiththedifferentmechanismsofupperandlowerbainites.Keywords:42CrMo4steel;TTTdiagram;thermal-mechanicaltestingmachine收稿日期:2008-05-07作者简介:张逸阳(1980— ), 男, 江苏扬州人, 讲师, 在读博士, 主要从事热处 理 智能 化 研究。
The TTT diagram and the CCT diagram on annealing of S7 steel were determined by means of full automatic transformation testing instrument (Formastor\|Digital). 利用Formastor Digital全自动相变测量仪 ,测定了S7钢退火用CCT曲线和TTT曲线。 3. The TTT diagram of S7 steel was investigated by means of...